A solid material performance integrated testing system and testing method thereof

Abstract

The present invention discloses a solid material performance integrated test system and a test method thereof, the solid material performance integrated test system comprises a Raman spectroscopy module, a nanoindentation module, a mobile guide rail, a sample transport module and a control center, the Raman spectroscopy module is provided with a first test station for testing precision samples; the nanoindentation module is provided with a second test station for testing precision samples; one end of the mobile guide rail extends to the first test station, and the other end extends to the second test station; the sample transport module is connected to the mobile guide rail, and can slide along the extension direction of the mobile guide rail, and is used to drive the precision sample along the mobile guide rail; the control center is electrically connected to the Raman spectroscopy module, the nanoindentation module and the sample transport module. By integrating Raman spectroscopy technology and nanoindentation technology on the same platform, the data of chemical composition and mechanical properties of the material can be synchronously acquired, which is convenient for studying the correlation between the microstructure and macroscopic properties of the material.

Description

Technical Field

[0001] The present invention relates to the technical field of material performance testing, and in particular to a solid material performance integrated testing system and a testing method thereof. Background Art

[0002] In the research and industrial application of materials science, accurate characterization of the chemical composition and mechanical properties of materials is of great significance for the performance evaluation of engineering materials, the study of microstructure, the development and performance optimization of new materials, and quality control. With the continuous innovation of modern testing technology, the testing methods for the chemical information and physical properties of materials are also constantly improving. Raman spectroscopy technology is widely used in the analysis of chemical composition and molecular structure of materials due to its non-contact and high sensitivity; nanoindentation technology is a key tool for evaluating the micromechanical properties of materials, and can provide mechanical parameters such as hardness and elastic modulus.

[0003] However, traditional Raman spectroscopy and nanoindentation testing are usually performed in separate systems, which inevitably introduces positioning errors when samples are transferred between devices, increasing operational complexity, prolonging experimental cycles, and easily causing human errors, reducing data reliability, especially in micron or even nanoscale tests, where such errors may significantly affect data accuracy and repeatability. More importantly, the inability to simultaneously obtain chemical and mechanical information on the same experimental platform limits the efficiency of material characterization and the coherence of overall analysis, making it extremely difficult to simultaneously obtain and comprehensively analyze chemical information and mechanical properties data, limiting research on the correlation between the microstructure and macroscopic properties of the same location in the material.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide an integrated testing system for solid material properties and a testing method thereof, aiming to solve the problem that the existing testing system requires separate testing of the chemical information and physical properties of the material, which affects the study of the correlation between the microstructure and macroscopic properties at the same position of the material.

[0006] The technical solution of the present invention is as follows:

[0007] A solid material performance integrated testing system, comprising a Raman spectroscopy module, a nanoindentation module, a movable guide rail, a sample transport module and a control center, wherein the Raman spectroscopy module is provided with a first test station for testing precision samples; the nanoindentation module is provided with a second test station for testing the precision samples; one end of the movable guide rail extends to the first test station, and the other end extends to the second test station; the sample transport module is connected to the movable guide rail and can slide along the extension direction of the movable guide rail, and is used to drive the precision sample along the movable guide rail; the control center is electrically connected to the Raman spectroscopy module, the nanoindentation module and the sample transport module.

[0008] The solid material performance integrated test system, wherein the Raman spectroscopy module includes a microscope base, a camera assembly, a Raman laser light source and a detection assembly; the microscope base is provided with the first test station, and the movable guide rail is connected to the microscope base at the first test station; the camera assembly is arranged above the microscope base, facing the first test station; the Raman laser light source is connected to the camera assembly for emitting a laser beam; the input end of the detection assembly is connected to the camera assembly, and the output end is connected to the control center for collecting reflected light signals.

[0009] The solid material performance integrated testing system, wherein the camera assembly includes a condenser lens, a microscope converter and a plurality of microscope cameras which are sequentially arranged toward the first test station, the condenser lens is connected to the Raman laser light source and the detection assembly via a transmission optical fiber, the microscope converter is rotatably arranged on the condenser lens, and a plurality of the microscope cameras are arranged at intervals along the circumferential direction on the microscope converter; the microscope converter is used to drive the microscope camera to rotate to align with the condenser lens.

[0010] In the solid material performance integrated testing system, a focusing screw is provided on the microscope base and is transmission-connected to the camera assembly, and the focusing screw is used to adjust the distance between the camera assembly and the microscope base.

[0011] The solid material performance integrated testing system, wherein the detection component includes a Raman spectrometer and an image detector, the input end of the Raman spectrometer is connected to the camera component through a transmission optical fiber, and the output end is connected to the image detector; the image detector is communicatively connected to the control center.

[0012] The solid material performance integrated testing system, wherein the nanoindentation module includes a shock absorbing platform, a longitudinal slide rail, a loading motor, a telescopic rod, a displacement measuring component and a load measuring component, wherein the longitudinal slide rail is vertically arranged on the shock absorbing platform; the movable guide rail is connected to the longitudinal slide rail and intersects above the shock absorbing platform; the loading motor is arranged above the shock absorbing platform, on the side of the movable guide rail away from the shock absorbing platform; the loading motor is electrically connected to the control center; one end of the telescopic rod is connected to the loading motor, and the other end extends toward the movable guide rail and is provided with an indentation probe; the position where the telescopic rod is projected on the movable guide rail forms the second test station; the displacement measuring component is arranged on the telescopic rod and connected to the control center; the load measuring component is arranged on the telescopic rod and connected to the control center.

[0013] In the solid material performance integrated testing system, the shock absorbing platform is an air floating platform.

[0014] The solid material property integrated testing system described above, wherein the sample transport module includes a sample carrier, a drag chain and a drive motor; the sample carrier can be slidably disposed on the movable guide rail for loading the precision sample; the drag chain is arranged along the length direction of the movable guide rail and is located on the side of the movable guide rail; the drive motor is connected to the drag chain for driving the displacement of the drag chain to pull the sample carrier to reciprocate between the first test station and the second test station.

[0015] The present application also discloses a testing method for the solid material performance integrated testing system as described above, which comprises:

[0016] Calibrate the distance between the first test station and the second test station to obtain a predetermined spacing value;

[0017] Assemble the precision samples to be tested onto the sample transport module;

[0018] Starting the sample transport module to transport the precision sample to the first testing station; detecting the precision sample through the Raman spectroscopy module to obtain spectral data;

[0019] The sample transport module is started, and when the distance moved by the sample transport module is equal to the predetermined spacing value, the sample is stopped, and the precision sample is transported to the second testing station; and the precision sample is tested by the nanoindentation module to obtain mechanical property data;

[0020] A synchronous analysis report is generated based on the spectral data and the mechanical property data.

[0021] The testing method of the solid material performance integrated testing system, wherein the step of generating a synchronous analysis report based on the spectral data and the mechanical property data specifically comprises:

[0022] Correcting the spectral data and the mechanical property data using historical data; wherein the historical data is test data of 10 to 100 previous tests stored in the system;

[0023] If both the spectral data and the mechanical property data fall within the preset threshold range, the correction is terminated to obtain the corrected spectral data and the corrected mechanical property data;

[0024] A synchronous analysis report is generated based on the corrected spectral data and the corrected mechanical property data.

[0025] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0026] The solid material performance integrated testing system disclosed in the present invention is centrally controlled by a control center, and integrates a Raman spectroscopy module and a nanoindentation module. Both the chemical properties and the physical properties of materials can be tested on one platform, and the test data are uniformly sent to the control center. The correlation between microstructure and macroscopic performance can be studied, which is beneficial to increasing the efficiency and consistency of material characterization. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of the solid material performance integrated testing system in the present invention;

[0029] Figure 2 It is a structural schematic diagram of the solid material performance integrated testing system in the present invention;

[0030] Figure 3 It is a flow chart of the testing method of the solid material performance integrated testing system in the present invention;

[0031] Figure 4 This is a microscope image of a precision sample in one embodiment of the present invention;

[0032] Figure 5 This is a Raman spectrum of a precision sample in one embodiment of the present invention;

[0033] Figure 6 is a load-displacement curve diagram of a precision sample in one embodiment of the present invention;

[0034] Figure 7 A material composition distribution diagram of a test area of ​​a precision sample in one embodiment of the present invention;

[0035] Figure 8 A distribution diagram of material mechanical properties of a test area of ​​a precision sample in one embodiment of the present invention;

[0036] Fig. 9 A graph showing the correlation between the chemical composition and indentation depth of a precision sample in one embodiment of the present invention;

[0037] Fig.10 Schematic diagram of the relationship between material surface defects and hardness of a precision sample in one embodiment of the present invention.

[0038] Among them, 100, Raman spectroscopy module; 110, microscope base; 111, focusing screw; 120, camera assembly; 121, focusing lens; 122, microscope converter; 123, microscope camera; 130, Raman laser light source; 140, detection assembly; 141, Raman spectrometer; 142, image detector; 150, transmission optical fiber; 200, nanoindentation module; 210, shock-absorbing platform; 220, longitudinal slide rail; 230, loading motor; 240, telescopic rod; 250, indentation probe; 260, displacement measurement component; 270, load measurement component; 300, moving guide rail; 400, sample transport module; 410, sample carrier; 420, drag chain; 430, drive motor; 500, control center; 510, data processing and correction unit; 520, control terminal. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1In one embodiment of the present invention, a solid material performance integrated testing system is disclosed, which includes a Raman spectroscopy module 100, a nanoindentation module 200, a movable guide rail 300, a sample transport module 400 and a control center 500. The Raman spectroscopy module 100 is provided with a first test station for testing precision samples; the nanoindentation module 200 is provided with a second test station for testing the precision samples; one end of the movable guide rail 300 extends to the first test station, and the other end extends to the second test station; the sample transport module 400 is connected to the movable guide rail 300 and can slide along the extension direction of the movable guide rail 300, and is used to drive the precision sample along the movable guide rail 300; the control center 500 is electrically connected to the Raman spectroscopy module 100, the nanoindentation module 200 and the sample transport module 400.

[0041] The solid material performance integrated testing system disclosed in this embodiment is uniformly controlled by a control center 500, integrating a Raman spectroscopy module 100 and a nanoindentation module 200. Both the chemical properties and the physical properties of the material can be tested on one platform, and the test data can be uniformly sent to the control center 500. The correlation between microstructure and macroscopic performance can be studied, which is conducive to increasing the efficiency and consistency of material characterization.

[0042] Specifically, Raman spectra is a scattering spectrum. Raman spectroscopic analysis is based on the Raman scattering effect discovered by Indian scientist CV Raman. In this embodiment, the Raman spectroscopic module 100 uses Raman spectroscopic technology to perform rapid, accurate, and non-destructive qualitative analysis on precision samples and collect chemical information of precision samples. Nanoindentation technology is a method for testing material mechanics developed on the basis of traditional hardness testing. It has the advantages of high sensitivity and the ability to measure the mechanical properties of materials at the nanoscale. In this embodiment, the physical properties of precision samples are tested by the nanoindentation module 200.

[0043] It can be seen that this embodiment integrates the Raman spectroscopy module 100 and the nanoindentation module 200 in one system by combining Raman spectroscopy technology and nanoindentation technology, and automatically controls the movement of the sample transport module 400 through the control center 500, so that the precision sample can be accurately moved between different workstations, simplifying the transfer operation, eliminating the step of repositioning, shortening the test cycle, and improving the accuracy of the test results. Especially in the study of material properties at the micro-nano scale, simplifying the movement operation and eliminating the step of repositioning can significantly reduce the operating error in the test process, accurately align the target position on the sample for different tests, increase the reliability of the data, and facilitate integrated analysis, quickly and accurately characterize the precision sample, improve the analysis accuracy and depth, and meet the needs of multi-dimensional systematic research on material properties.

[0044] like Figure 1 As shown, as an implementation of this embodiment, the Raman spectroscopy module 100 is disclosed to include a microscope base 110, a camera assembly 120, a Raman laser light source 130 and a detection assembly 140, the microscope base 110 is provided with the first test station, the movable guide rail 300 is connected to the microscope base 110 at the first test station; the camera assembly 120 is arranged above the microscope base 110, facing the first test station; the Raman laser light source 130 is connected to the camera assembly 120 for emitting a laser beam; the input end of the detection assembly 140 is connected to the camera assembly 120, and the output end is connected to the control center 500 for collecting reflected light signals.

[0045] The microscope base 110 disclosed in this embodiment is fixedly arranged to maintain stability. During the test process, the sample transport module 400 slides on the movable guide rail 300 and stops when sliding to the first test station, and the chemical property test process can be carried out.

[0046] Specifically, in another implementation of the present embodiment, it is disclosed that the microscope base 110 is provided with a quasi-focusing screw 111, which is transmission-connected with the camera assembly 120, and the quasi-focusing screw 111 is used to adjust the distance between the camera assembly 120 and the microscope base 110. When the solid material performance integrated testing system disclosed in the present embodiment can test precision samples of different types or sizes, it is assumed that the height of the assembly from the surface of the sample is different, which may affect the focusing effect, so the quasi-focusing screw 111 is provided. By rotating the quasi-focusing screw 111, the distance between the camera assembly 120 and the microscope base 110 is fine-tuned, which plays a role in fine-tuning the focal length. The quasi-focusing screw 111 disclosed in the present embodiment is transmission-connected with the camera assembly 120, similar to the structure of adjusting the lens barrel by a knob in an optical microscope, and the adjustment is achieved by the meshing assembly of a gear and a rack.

[0047] Specifically, a laser beam is emitted by the Raman laser light source 130, and the laser passes through the camera component 120 and is focused on the surface of the precision sample, so as to accurately test the target position. The material is excited to generate a Raman scattering signal, and the scattered light is transmitted to the detection component 140 through the camera component 120. Raman spectroscopy analysis is performed in the detection component 140 to study the molecular structure and properties of the precision sample.

[0048] Specifically, in this embodiment, a laser beam is used to irradiate a precision sample, and the high output power of the laser is used to provide a large amount of energy, so that the molecular vibration of the sample is strong, and a strong reverse Raman scattering light signal is generated, so that the test effect is obvious and the test data is convenient to collect; by utilizing the adjustable wavelength of the laser, the optimal wavelength can be selected to test different samples; by utilizing the narrow spectral width of the laser, the Raman scattering light signal that can be generated is very clean and has little interference, which can improve the accuracy of the test results.

[0049] like Figure 2 As shown, as another implementation of this embodiment, the camera assembly 120 is disclosed to include a condenser lens 121, a microscope converter 122 and a plurality of microscope cameras 123 which are sequentially arranged toward the first test station, the condenser lens 121 is connected to the Raman laser light source 130 and the detection assembly 140 via a transmission optical fiber 150, the microscope converter 122 is rotatably arranged on the condenser lens 121, and a plurality of the microscope cameras 123 are arranged at intervals along the circumferential direction on the microscope converter 122; the microscope converter 122 is used to drive the microscope camera 123 to rotate to align with the condenser lens 121.

[0050] In this embodiment, the camera assembly 120 is arranged directly above the first test station to inject laser light perpendicular to the surface of the sample and receive reflected light. The focusing lens 121 is connected to the Raman laser light source 130 to focus light, keep the beam focused at the micron level, accurately focus the laser on the surface of the precision sample, and irradiate the tiny area with high intensity and high precision to ensure that the target area is tested and improve the effectiveness of the collected Raman scattering signal.

[0051] Specifically, the solid material performance integrated test system disclosed in this embodiment can test precision samples of various types or sizes, so multiple microscope cameras 123 are set, each of which has a different model and can capture images of different resolutions. Before the test, the microscope camera 123 with a suitable magnification is adjusted to the front of the condenser lens 121 through the microscope converter 122, which plays the role of switching the appropriate magnification to adapt to the use requirements in different working environments and increase the applicability of the test system.

[0052] For example Figure 1 As shown, as another implementation of this embodiment, the detection component 140 is disclosed to include a Raman spectrometer 141 and an image detector 142, the input end of the Raman spectrometer 141 is connected to the camera component 120 through a transmission optical fiber 150, and the output end is connected to the image detector 142; the image detector 142 is communicatively connected to the control center 500.

[0053] Specifically, the Raman spectrometer 141 is mainly used to study the determination and confirmation of material composition. It has a simple structure, convenient operation, and fast measurement speed. It is known for its low wavenumber measurement capability. It adopts a confocal optical path design to obtain higher resolution and can perform micron-level micro-area detection on the sample surface. Therefore, it is used in this embodiment to accurately capture images of material scattering at the test position at the micron level.

[0054] Specifically, the image detector 142 disclosed in this embodiment can use a charge-coupled device image sensor (CCD detector for short). Compared with traditional visual detection methods, CCD detectors have the advantages of high sensitivity, high resolution, real-time, and non-contact detection. Moreover, CCD detectors can perform various processing on the collected images, such as filtering, edge detection, morphological processing, etc., so as to extract useful information and realize accurate detection of the detected object; in addition, it is also convenient to combine with robots, computers, etc. to realize automation.

[0055] In summary, this embodiment connects the Raman spectrometer 141 and the camera assembly 120, and the image detector 142 and the camera assembly 120 through the transmission optical fiber 150. It has a simple structure, fast optical signal transmission speed, stable transmission, and is conducive to improving the working stability of the test system.

[0056] For example Figure 2 As shown, as another implementation of this embodiment, the nanoindentation module 200 is disclosed to include a shock absorbing platform 210, a longitudinal slide rail 220, a loading motor 230, a telescopic rod 240, a displacement measuring component 260 and a load measuring component 270, and the longitudinal slide rail 220 is vertically arranged on the shock absorbing platform 210. During the test, the shock absorbing platform 210 remains horizontal, and the longitudinal slide rail 220 is arranged in the vertical direction. In this embodiment, the shock absorbing platform 210 plays a role in supporting and stabilizing the longitudinal slide rail 220. Specifically, the shock absorbing platform 210 can be set as an air floating platform. The air floating platform has a good vibration isolation effect, which can reduce environmental vibration interference, so that during the test, the sample transport module 400 can remain stable when it stops at the second test station, so as to facilitate precision testing, improve the accuracy and stability of the test, and increase the reliability of the test results.

[0057] Specifically, in this embodiment, the movable guide rail 300 is connected to the longitudinal slide rail 220 and intersects above the shock absorbing platform 210. The loading motor 230 is disposed above the shock absorbing platform 210, on the side of the movable guide rail 300 away from the shock absorbing platform 210; the loading motor 230 is electrically connected to the control center 500; the control center 500 sends a control signal to adjust the output power of the loading motor 230.

[0058] In this embodiment, one end of the telescopic rod 240 is connected to the loading motor 230, and the other end extends toward the moving guide rail 300, and is provided with an indentation probe 250; the position where the telescopic rod 240 is projected on the moving guide rail 300 forms the second test station; when the loading motor 230 is started, the telescopic rod 240 moves down, causing the indentation probe 250 to move down until it contacts the surface of the precision sample. Specifically, the cross-sectional shape of the indentation probe 250 is triangular, and the bottom forms a contact sharp angle, so that it is easy to concentrate pressure on the test area when contacting the sample, and only apply pressure to the test area to accurately measure the physical properties of the target position on the sample.

[0059] It should be noted that the loading motor 230 disclosed in this embodiment includes but is not limited to a stepper motor, a motor, etc. This embodiment only exemplifies the connection structure between the loading click and the telescopic rod 240, but the protection scope of the present invention is not limited to this. In actual production and manufacturing, other types of driving structures, as long as they can drive the indentation probe 250 to move up and down and directly test the surface of the precision sample, can achieve the technical effect disclosed in this application. As an equivalent replacement of the concept of the present invention, it should also be within the scope of protection of this application.

[0060] Specifically, the displacement measuring component 260 disclosed in this embodiment includes but is not limited to any one of a laser displacement meter, a linear sensor, and a vernier caliper. The displacement measuring component 260 is arranged on the telescopic rod 240 and is connected to the control center 500. When the telescopic rod 240 moves upward or downward, the displacement information is collected in real time and fed back to the control center 500, so as to accurately control the movement stroke of the telescopic rod 240 and measure the displacement depth of the indentation probe 250, so as to calculate the physical properties such as the hardness and elastic modulus of the tested material.

[0061] Specifically, the load measuring component 270 disclosed in this embodiment includes but is not limited to any one of a pressure sensor, a weighing sensor, and a tension sensor. The load measuring component 270 is arranged on the telescopic rod 240 and is connected to the control center 500. When the indentation probe 250 moves downward and contacts the surface of the sample, it will generate pressure when it continues to move downward. The pressure data applied by the indentation probe 250 is measured by the load measuring component 270, and can be combined with the displacement data measured by the displacement measuring component 260 for calculation to obtain mechanical property data.

[0062] In summary, in this embodiment, the nanoindentation module 200 is used to perform pressure testing on precision samples with high sensitivity, and can achieve a pressure depth as small as nanometers (0.1-100 nanometers). It is particularly suitable for measuring the mechanical properties of ultra-thin layer materials such as films and coatings, and can perform tests on nanohardness, elastic modulus, nanoscratch, friction coefficient, yield strength and interface bonding force under continuous dynamic loads.

[0063] It can be seen that the Raman spectroscopy module 100 and the nanoindentation module 200 can be used to accurately test the target points on the surface of the sample and simultaneously obtain physical and chemical property data, so as to achieve the purpose of studying the correlation between the microstructure and macroscopic properties of the material, provide support for revealing the material performance mechanism, and show broad scientific value and application prospects.

[0064] For example Figure 2 As shown, as another implementation of this embodiment, the sample transport module 400 is disclosed to include a sample carrier 410, a drag chain 420 and a drive motor 430. The sample carrier 410 can be slidably arranged on the movable guide rail 300 for loading the precision sample; the drag chain 420 is arranged along the length direction of the movable guide rail 300 and is located on the side of the movable guide rail 300; the drive motor 430 is connected to the drag chain 420, for driving the drag chain 420 to move, so as to pull the sample carrier 410 to reciprocate between the first test station and the second test station.

[0065] The movable guide rail 300 disclosed in this embodiment extends in the horizontal direction, and the cross-sectional shape may be L-shaped, I-shaped, or T-shaped. The sample carrier 410 is disposed on the longitudinal groove or longitudinal ridge of the movable guide rail 300, so that it can be clamped on the movable guide rail 300 to avoid disengagement and disassembly, and can slide freely along the axial direction of the movable guide rail 300. Specifically, a clamp, a positioning clip, a pressure sensor, etc. may be disposed on the sample carrier 410 to accurately position the precision sample and ensure stability during the test process.

[0066] In this embodiment, a drag chain 420 is arranged on the side of the moving guide rail 300, and the drag chain 420 is connected to the sample carrier 410. The drag chain 420 is extended or shortened along the axial direction of the moving guide rail 300, and can carry the sample carrier 410 to move between the first test station and the second test station. Specifically, the drag chain 420 can be set as a structure in which a hollow shell wraps a wire or cable, and the hollow shell can pull the sample carrier 410, and the wire or cable is electrically connected to the positioning device, sensor, etc. on the sample carrier 410 to transmit electrical signals.

[0067] Specifically, the driving motor 430 disclosed in this embodiment includes but is not limited to a stepper motor and a DC motor. The motor sets a shaft at the output end of the motor, and drives the shaft to rotate to convolve the drag chain 420, so as to achieve the effect of extending and retracting the drag chain 420, thereby accurately controlling the length of the drag chain 420 and improving the accuracy of position control of the sample carrier 410.

[0068] For example Figure 2 As shown, as another implementation of this embodiment, the control center 500 is disclosed to include a data processing and correction unit 510 and a control terminal 520, wherein the data processing and correction unit 510 is used to analyze the chemical composition information and mechanical property information of the precision sample, and generate a chart, which is displayed on the control terminal 520. The control terminal 520 can be set as an electronic device with a display screen, such as a computer, a tablet, or a central operating console.

[0069] like Figure 3 As shown, as another embodiment of the present application, a testing method for a solid material performance integrated testing system as described above is disclosed, which includes:

[0070] S100, calibrating the distance between the first test station and the second test station to obtain a predetermined distance value;

[0071] S200, assembling the precision sample to be tested onto the sample transport module;

[0072] S300, starting the sample transport module to transport the precision sample to the first testing station; detecting the precision sample through the Raman spectroscopy module to obtain spectral data;

[0073] S400, starting the sample transport module, stopping when the moving distance of the sample transport module is equal to the predetermined spacing value, and transporting the precision sample to the second testing station; performing detection through the nanoindentation module to obtain mechanical property data;

[0074] S500: Generate a synchronous analysis report based on the spectral data and the mechanical property data.

[0075] In this embodiment, the test and transportation process of the precision sample is automatically controlled, so that the precision sample is always fixed on the sample transportation module during the test process, and does not need to be repeatedly disassembled and positioned, so the stability is high. As long as the distance between the two test stations is calibrated in advance, and then the moving distance of the sample transportation module is accurately controlled, the same position on the sample surface can be tested during the two tests, which is conducive to improving the test accuracy, reducing the positioning error and test error in the traditional test method, and improving the consistency of the test results.

[0076] Specifically, after obtaining the spectral data and mechanical property data, a comprehensive information report corresponding to the chemical and mechanical properties of different regions is generated through comprehensive analysis and integration. The test efficiency is high and it is conducive to the correlation study between the microstructure and macroscopic properties of materials.

[0077] Specifically, as another implementation of this embodiment, step S500 is disclosed to specifically include:

[0078] S510, correcting the spectral data and the mechanical property data using historical data; wherein the historical data is test data of 10-100 previous tests stored in the system;

[0079] S520: If both the spectral data and the mechanical property data fall within the preset threshold range, then the correction is terminated to obtain the corrected spectral data and the corrected mechanical property data;

[0080] S530: Generate a synchronous analysis report based on the corrected spectral data and the corrected mechanical property data.

[0081] This embodiment discloses correcting the test data through historical data, thereby screening out abnormal data and retaining qualified data, thereby improving the consistency and effectiveness of the test data.

[0082] Specifically, in one implementation of this embodiment, statistical calculation rules can be used to quickly identify and remove abnormal values ​​in the test data, such as mean, standard deviation and interquartile range (IQR).

[0083] The following is an example of the process of correcting test data using the interquartile range method:

[0084] (i) Extract historical data similar to the current test conditions (such as test materials and test environment) from the database.

[0085] Extract key characteristic parameters such as spectral peak position, hardness, elastic modulus, and calculate the mean value of each parameter , Standard Deviation , then count all the features, calculate the first quartile (Q1) and the third quartile (Q3), and determine the interquartile range of the data .

[0086] 2. Anomaly identification based on standard deviation.

[0087] Set data range As condition 1, set the data range to be less than or greater than Condition 2; identification is based on the standard deviation of condition 1 or the interquartile range of condition 2; as long as one of the conditions is met, it is identified as an anomaly, the identified abnormal data is removed from the data set, and the compliant data is retained for subsequent analysis.

[0088] (III) After removing outliers, the spectral and mechanical properties test data were smoothed to reduce random fluctuations and noise in the data. The Savitzky-Golay filtering method was used to retain the main signal while removing the sharp noise peaks caused by environmental factors.

[0089] Specifically, in another implementation of this embodiment, Fourier transform can be used to convert the spectrum or mechanical property test data into the frequency domain, identify high-frequency noise, and perform filtering processing to reduce noise peaks and retain the main features of the spectrum and mechanical curves. The specific operation method is as follows:

[0090] 1. Convert the data to the frequency domain.

[0091] Perform fast Fourier transform (FFT) on the spectral test data and mechanical property test data to convert the data from the time domain to the frequency domain. Calculate, where is the frequency domain signal, is a time domain signal.

[0092] (ii) Spectrum analysis.

[0093] Identify high-frequency components in the frequency domain, which usually correspond to random noise and abnormal peaks. Analyze the high-frequency part in the frequency domain, determine the main range of high-frequency noise, and mark the noise frequency band to prepare for subsequent filtering.

[0094] 3. Threshold setting.

[0095] Extract historical data that is the same or similar to the current test conditions (such as test materials and test environment) from the database, and calculate the respective spectrum characteristics, especially the frequency distribution of signals and noise, through multiple sets of historical data. Set a reasonable frequency threshold by analyzing multiple sets of historical frequency domain data The threshold condition is used as the dividing line between the noise frequency band and the signal frequency band, and only the main signal below this frequency is retained. Set the threshold It can be near the historical mean, and the recommended The range (where and are the signal frequency mean and standard deviation of the historical frequency domain data respectively).

[0096] (iv) Filter correction.

[0097] Apply a low-pass filter (such as Butterworth filter) to retain only low-frequency signals and remove high-frequency noise. The selection of filter parameters should be based on the spectral characteristics of historical data. The filtered and corrected data is converted back to the time domain through inverse Fourier transform (IFFT) to obtain the corrected spectrum and mechanical data. Compare the data before and after correction to ensure that the noise peak is effectively eliminated and the main spectral features (spectral peak position, peak width, etc.) or mechanical response curves (maximum load, elastic range, etc.) are not significantly distorted. If necessary, adjust the frequency threshold or filter parameters to ensure that the data conforms to the test rules.

[0098] Specifically, Figure 4 As shown, in another embodiment of this embodiment, solid granular material is used as a sample for testing, and the test area is Figure 4 The area marked by the red triangle in the figure is observed and the coordinates of the test area are recorded under a microscope. Then the transport path of the sample transport module is calculated and the Raman spectrum test is performed at the first test station. The results are as follows: Figure 5 As shown in Figure 1, the material composition of the test area can be determined based on the peak data on the Raman spectrum; Figure 7 As shown, during the Raman spectroscopy test, a material composition distribution map of the test area is obtained, and different colors are used to represent the local material composition.

[0099] Then, the nanoindentation test was performed at the second test station, and the results were as follows: Figure 6 as shown; and Figure 8 As shown, the horizontal axis is the X-axis in the coordinate system, the vertical axis on the left is the Y-axis in the coordinate system, and the vertical axis on the right is the elastic modulus (E), and the distribution diagram of the mechanical properties of the test material is obtained.

[0100] Finally, if Fig. 9 As shown in FIG, based on the measured spectral data and mechanical property data, a joint analysis is performed, and curves of different colors represent indentation curves of different chemical compositions, and a correlation diagram between different chemical compositions and indentation depths in the test area is obtained; Fig.10 As shown, different colors represent different local hardnesses, and the defects on the surface of the test area and the change results of the local hardness value are obtained.

[0101] It can be seen that in this embodiment, by testing both the chemical properties and the physical properties of the material on one platform, the test efficiency is improved. In addition, the test data is uniformly sent to the control center to conduct a correlation study between the microstructure and the macroscopic properties, which is conducive to increasing the efficiency and consistency of material characterization.

[0102] It should be understood that the various parts of the present application can be implemented in hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array, a field programmable gate array, etc.

[0103] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0104] In summary, the present application discloses a solid material performance integrated test system, which includes a Raman spectroscopy module, a nanoindentation module, a mobile guide rail, a sample transport module and a control center, wherein the Raman spectroscopy module is provided with a first test station for testing precision samples; the nanoindentation module is provided with a second test station for testing the precision samples; one end of the mobile guide rail extends to the first test station, and the other end extends to the second test station; the sample transport module is connected to the mobile guide rail, and can slide along the extension direction of the mobile guide rail, and is used to drive the precision sample along the mobile guide rail; the control center is electrically connected to the Raman spectroscopy module, the nanoindentation module and the sample transport module. The solid material performance integrated test system disclosed in this embodiment is uniformly controlled by the control center, and the Raman spectroscopy module and the nanoindentation module are integrated. Both the chemical properties and the physical properties of the material can be tested on a single platform, and the test data are uniformly sent to the control center, and the correlation between the microstructure and the macroscopic performance can be studied, which is conducive to increasing the efficiency and consistency of material characterization.

[0105] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0106] It should be noted that the present invention takes the solid material performance integrated testing system as an example to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to the solid material performance integrated testing system, and can also be applied to the detection and use of other similar workpieces.

[0107] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0108] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A solid material performance integrated testing system, characterized in that: include: A Raman spectroscopy module, wherein the Raman spectroscopy module is provided with a first testing station for testing precision samples; A nanoindentation module, wherein the nanoindentation module is provided with a second testing station for testing the precision sample; A movable guide rail, one end of which extends to the first test station and the other end of which extends to the second test station; A sample transport module, connected to the movable guide rail, slidable along the extension direction of the movable guide rail, and used for driving the precision sample along the movable guide rail; as well as A control center, electrically connected to the Raman spectroscopy module, the nanoindentation module and the sample transport module; The Raman spectroscopy module comprises: A microscope base, wherein the first test station is provided on the microscope base, and the movable guide rail is connected to the microscope base at the first test station; A camera assembly is disposed above the microscope base and facing the first testing station; A Raman laser light source, connected to the camera assembly and used to emit a laser beam; and A detection component, the input end of which is connected to the camera component, and the output end of which is connected to the control center, for collecting reflected light signals; The camera assembly comprises a condenser lens, a microscope converter and a plurality of microscope cameras which are sequentially arranged toward the first test station, the condenser lens is connected to the Raman laser light source and the detection assembly through a transmission optical fiber, the microscope converter is rotatably arranged on the condenser lens, and a plurality of the microscope cameras are arranged at intervals along the circumferential direction on the microscope converter; the microscope converter is used to drive the microscope cameras to rotate so as to align with the condenser lens; The nanoindentation module comprises: Shock-absorbing platform; A longitudinal slide rail is vertically arranged on the shock absorbing platform; the movable guide rail is connected with the longitudinal slide rail and intersects above the shock absorbing platform; A loading motor is arranged above the damping platform and located on a side of the movable guide rail away from the damping platform; the loading motor is electrically connected to the control center; A telescopic rod, one end of which is connected to the loading motor, and the other end of which extends toward the movable guide rail and is provided with an indentation probe; the position where the telescopic rod is projected on the movable guide rail forms the second test station; A displacement measuring component, disposed on the telescopic rod and connected to the control center; The load measuring component is arranged on the telescopic rod and connected to the control center.

2. The solid material performance integrated testing system according to claim 1, characterized in that: The microscope base is provided with a focusing screw which is transmission-connected with the camera assembly. The focusing screw is used to adjust the distance between the camera assembly and the microscope base.

3. The solid material performance integrated testing system according to claim 1, characterized in that: The detection component includes a Raman spectrometer and an image detector. The input end of the Raman spectrometer is connected to the camera component through a transmission optical fiber, and the output end is connected to the image detector; the image detector is connected to the control center for communication.

4. The solid material performance integrated testing system according to claim 1, characterized in that: The shock-absorbing platform is an air-floating platform.

5. The solid material performance integrated testing system according to any one of claims 1 to 4, characterized in that: The sample transport module comprises: A sample carrier, slidably disposed on the movable guide rail, and used for carrying the precision sample; A drag chain is arranged along the length direction of the movable guide rail and is located on the side of the movable guide rail; A driving motor is connected to the drag chain and is used to drive the drag chain to move so as to pull the sample carrier to move back and forth between the first test station and the second test station.

6. A testing method for the solid material performance integrated testing system according to any one of claims 1 to 5, characterized in that: include: Calibrate the distance between the first test station and the second test station to obtain a predetermined spacing value; Assemble the precision samples to be tested onto the sample transport module; Starting the sample transport module to transport the precision sample to the first testing station; Detecting the precision sample through a Raman spectroscopy module to obtain spectral data; Starting the sample transport module, stopping when the moving distance of the sample transport module is equal to the predetermined spacing value, and transporting the precision sample to the second testing station; The mechanical properties data can be obtained by testing with the nanoindentation module; A synchronous analysis report is generated based on the spectral data and the mechanical property data.

7. The testing method of the solid material performance integrated testing system according to claim 6, characterized in that: The step of generating a synchronous analysis report based on the spectral data and the mechanical property data specifically includes: Correcting the spectral data and the mechanical property data using historical data; wherein the historical data is test data of 10 to 100 previous tests stored in the system; If both the spectral data and the mechanical property data fall within the preset threshold range, the correction is terminated to obtain the corrected spectral data and the corrected mechanical property data; A synchronous analysis report is generated based on the corrected spectral data and the corrected mechanical property data.

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