High-throughput detection method and system for performance of metal material and storage medium

Abstract

The invention provides a high-throughput detection method and system for metal material performance and a storage medium, and belongs to the technical field of high-throughput detection of material performance, and the high-throughput detection method comprises the following steps: preparing a sample with a wedge-shaped or right trapezoid-shaped side surface; rolling the wedge-shaped or right trapezoid sample by adopting an asymmetrical rolling roller with a constant roller spacing; software is adopted to simulate the rolling process, the length and the width of the sample after actual rolling are compared with the length and the width of the sample after simulated rolling, the error value of the length and the width is calculated, and when the error value is smaller than a preset value, the positions of different rolling reduction of the sample after actual rolling are calibrated based on the result of simulated rolling; and sampling and detecting the performance based on the positions of different rolling reduction. The rolling reduction position of a sample with a wedge-shaped or right trapezoid side surface is calibrated by adopting a mode of combining an actual rolling process and a software simulation rolling process, so that textures or performances of different rolling reductions can be conveniently measured.

Description

Technical Field

[0001] This invention belongs to the field of high-throughput material performance testing technology, specifically relating to a high-throughput testing method, system, and storage medium for metallic material performance. Background Technology

[0002] Traditional trial-and-error methods for developing new materials require 10-20 years from research to application, which is far from meeting the demands of manufacturing upgrades and iterations. Materials genome technology, a new concept and methodology for materials design and development advocated by various countries in recent years, encompasses three methods: high-throughput integrated computing, high-throughput experiments, and materials databases. Its goal is to halve the cost of new materials research and development while doubling its efficiency, making it a strategic high ground for materials innovation. High-throughput experiments, as one of the three pillars of materials genome engineering, aim to transform the original sequential iterative methods into parallel or efficient serial experiments, thereby significantly improving experimental efficiency. It includes two basic points: rapid sample preparation (high-throughput preparation) and rapid characterization of sample structure and properties (high-throughput characterization).

[0003] Existing technologies do not employ rolling methods to test the texture and properties of metals at different reduction rates by rolling the same sample. The main reason is that the metal flow patterns differ between rolling the same sample at different reduction rates and rolling multiple samples at different reduction rates, leading to variations in texture and properties. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a high-throughput testing method, system, and storage medium for metallic materials. By combining actual rolling processes with software simulations of rolling processes on samples with wedge-shaped or right-angled trapezoidal sides, the reduction position of the rolled sample is calibrated, thereby facilitating the measurement of texture or properties at different reduction amounts.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: This invention provides a high-throughput testing method for the properties of metallic materials, comprising: preparing a sample with a wedge-shaped or right-angled trapezoidal side; rolling the wedge-shaped or right-angled trapezoidal sample using rolls with a constant roll gap; simulating the rolling process using software, comparing the length and width of the sample after actual rolling with the length and width of the sample after simulated rolling, calculating the error value of the length and width, and when the error value is less than a preset value, calibrating the positions of different reduction amounts of the sample after actual rolling based on the results of the simulated rolling; and sampling and testing the properties based on the positions of the different reduction amounts.

[0006] Furthermore, when the side of the sample is a right trapezoid, the ratio of the length of the lower base to the upper base of the right trapezoid sample is not greater than 5 (1-r), the ratio of the width to the height of the lower base of the right trapezoid sample is not less than 7, and the ratio of the height to the length of the lower base of the right trapezoid is 3-7, where r is the initial compression rate; when the side of the sample is wedge-shaped, it is formed by extending the waists on both sides of the upper base of the right trapezoid sample.

[0007] Furthermore, the right-angled trapezoidal sample is rolled using rolls, wherein the radius of the rolls used for rolling is at least twice the height of the right-angled trapezoidal sample, and the reduction in the initial stage of rolling is not less than 10%.

[0008] Furthermore, both the simulated rolling and the actual rolling process employ asynchronous rolling, where the linear velocity of the rolls on the inclined side is lower than that of the rolls on the other side.

[0009] Furthermore, the asynchronous ratio of the asynchronous rolling... Satisfy the following formula: ; in, L is the absolute value of the difference between the length of the lower base and the upper base of the right trapezoidal sample or the length of the wedge base, and L is the height of the right trapezoidal sample or the height of the wedge.

[0010] Furthermore, the minimum linear speed of the rolls is 8 mm / s - 10 mm / s.

[0011] Furthermore, the rolling process is simulated using software such as ABAQUS, COMSOL Multiphysics, ANSYS, or DEFORM.

[0012] Furthermore, the simulation of the rolling process includes: modeling and defining the material properties of the rolls and samples; setting the simulation time and step size; setting the friction coefficient according to the actual situation; setting the roll linear velocity according to the actual situation; and meshing and performing calculations.

[0013] This invention also provides a high-throughput testing system for the properties of metallic materials, comprising: a sample preparation module for preparing samples with wedge-shaped or right-angled trapezoidal sides; a software simulation module for simulating the rolling process; a calibration module for comparing the length and width of the actual rolled sample with the length and width of the simulated rolled sample, calculating the error value of the length and width, and calibrating the positions of different reduction amounts of the actual rolled sample based on the simulated rolling results when the error value is less than a preset value; and a detection module for sampling and detecting the properties based on the positions of the different reduction amounts.

[0014] This invention also provides a computer storage medium storing a computer program that, when executed, implements the following method: designing the dimensions of a wedge-shaped or right-angled trapezoidal sample for sample processing; modeling based on the dimensions and simulating the rolling process; comparing the length and width of the actual rolled sample with the length and width of the simulated rolled sample; calculating the error value of the length and width; when the error value is less than a preset value; calibrating the positions of different reduction amounts of the actual rolled sample based on the results of the simulated rolling; and sampling and testing the performance based on the positions of the different reduction amounts.

[0015] The beneficial effects of the technical solution provided by the embodiments of the present invention include: the wedge rolling high-throughput technology proposed in this invention belongs to the category of high-throughput preparation technology, which can obtain multiple samples with different reduction amounts in a single rolling process. By comparing the actual rolling process with the simulated rolling process, when the error values ​​of length and width are less than preset values, it indicates that the rolling process is the same as the simulation result. Based on the simulation results, the rolled samples can be calibrated at different reduction positions, and samples can be taken and their performance tested based on these different reduction positions. This method not only reduces the dependence on specialized equipment but also greatly simplifies the preparation process, and has broad application prospects. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a sample with a right-angled trapezoidal side surface prepared according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a wedge-shaped sample prepared according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the rolling process provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the morphology after rolling provided in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of a sample with an isosceles trapezoidal side provided in Comparative Example 1 of the present invention.

[0018] Reference numerals: 1. Upper roll; 2. Lower roll; 3. Sample. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] This invention provides a high-throughput testing method for the properties of metallic materials, comprising: preparing a sample with a wedge-shaped or right-angled trapezoidal side; rolling the wedge-shaped or right-angled trapezoidal sample using rolls with a constant roll gap; simulating the rolling process using software, comparing the length and width of the sample after actual rolling with the length and width of the sample after simulated rolling, calculating the error value of the length and width, and when the error value is less than a preset value, calibrating the positions of different reduction amounts of the sample after actual rolling based on the results of the simulated rolling; and sampling and testing the properties based on the positions of the different reduction amounts.

[0021] The wedge rolling high-throughput technology proposed in this invention belongs to the category of high-throughput preparation technology. Multiple samples with different reduction amounts can be obtained through a single rolling process. By comparing the actual rolling process with the simulated rolling process, if the error values ​​in length and width are less than preset values, it indicates that the rolling process is consistent with the simulation results. Based on the simulation results, the rolled samples can be calibrated at different reduction positions, and samples can be taken and their performance tested at these different reduction positions. This method not only reduces reliance on specialized equipment but also greatly simplifies the preparation process, showing broad application prospects.

[0022] It should be noted that the sample provided in this embodiment of the invention has a wedge-shaped or right-angled trapezoidal structure on its side, and has a certain thickness. The thickness direction is the surface to be rolled, while the side is a free surface. During the rolling process, the normal of the sample's side is parallel to the rotation axis of the roll, and the apex of the wedge or the upper base of the right-angled trapezoid is fed into the roll for rolling.

[0023] A constant-pitch roll is used to roll samples with wedge-shaped or right-angled trapezoidal sides. After rolling, plates with different reduction rates can be obtained. Then, software is used to simulate the rolling process, and the material properties and rolling boundary conditions are assigned values ​​based on the actual situation. For example, the material properties are tested, including thermal conductivity and density, and parameters during the rolling process are measured, such as the friction coefficient between the roll and the sample. A 1:1 model is then created based on the actual roll diameter, sample shape and size.

[0024] In this embodiment of the invention, the length and width of the actual rolled sample are used as the basis for calculating the corresponding error value e. r ,Right now: ; Where P a P represents the actual length or width of the rolled sample. s This is to simulate the length or width of the sample after rolling. In this embodiment of the invention, the preset value is within 2%.

[0025] Based on the different reduction amounts, samples are taken and their performance is tested. In addition to the reduction amount as a sampling reference, in this embodiment of the invention, it is preferred to take samples in the middle 1 / 3 region of the longitudinal direction of the rolled sample, that is, in the middle 1 / 3 region of the width of the plate perpendicular to the rolling direction.

[0026] The performance tested in this embodiment of the invention includes texture and physical properties. Physical properties are tested using methods such as microcantilever beams for small-sized samples.

[0027] Specifically, such as Figure 1 As shown, when the side of the sample is a right trapezoid, the ratio of the length of the lower base to the upper base of the right trapezoid sample, L2 / L1, is not greater than 5(1-r), the ratio of the width L2 to the height L3 of the lower base of the right trapezoid sample is not less than 10, and the ratio of the height H1 to the length L2 of the lower base is 3-7, where r is the initial compression rate; Figure 2 As shown, when the side of the sample is wedge-shaped, it is formed by extending the waists on both sides of the upper base of the aforementioned right-angled trapezoidal sample. The aforementioned dimensional constraints are crucial. Since this application requires measuring the material texture and properties at different reduction rates on a single metal sample within the same rolled sheet, the challenge lies in the complex stress state of the sample during rolling. Different reduction rates cause changes in the metal's flow and stress state. Specifically, during rolling, for samples with right-angled trapezoidal or wedge-shaped sides, the area of ​​the free surfaces on both sides gradually increases as the rolling process progresses, causing the metal flow in the direction opposite to the rolling direction to be obstructed. Conversely, the flow in the rolling direction increases, resulting in a material microstructure that does not match the actual situation. Based on these considerations, this application first limits the dimensions of the upper and lower bases of the right-angled trapezoidal sample to avoid large angles between the hypotenuse of the wedge or the waist and right-angled side of the right-angled trapezoid, which would severely affect the metal's flow characteristics. Secondly, this application uses a right-angled trapezoid instead of an isosceles trapezoid, considering that more metal can flow to the right-angled side during the rolling process, thus avoiding more metal flowing in the opposite direction to the rolling direction during the rolling process.

[0028] Secondly, it should be noted that the inventors conducted experiments on samples with stepped, elliptical, and isosceles trapezoidal sides and found that the results of using right-angled trapezoids were more similar to the actual situation, while the results of other side shapes differed greatly from the actual flow. The main reason for this is that the metal flow was abnormal during the rolling process. Even if the length and width error between the actual rolled sample and the simulation result is less than 2%, there is still a problem of inaccurate test results.

[0029] The right-angled trapezoidal sample is rolled using rolls. The radius of the rolls used in rolling is at least twice the height of the right-angled trapezoidal sample, and the initial reduction in rolling is not less than 10%. Specifically, a larger roll radius results in a larger contact area with the sample, thus increasing the resistance to metal flow in the opposite direction to the rolling direction. Secondly, a larger contact area also affects the tendency of the sample to move towards both sides during rolling. Since the material at the core of the sample is under triaxial stress, while the material at the edges is under biaxial stress, the difference between the structure of biaxial and triaxial stress leads to inaccurate test results, especially in texture determination. Finally, an initial reduction of not less than 10% facilitates biting and increases the applicability of performance testing. Too small a reduction results in inaccurate initial test results, while a larger reduction results in fewer high-throughput test data.

[0030] For wedge rolling, samples can be taken directly from locations with a reduction rate of not less than 10% to test their performance.

[0031] Simulated rolling and actual rolling both employ asynchronous rolling, where the linear velocity of the rolls on one side of the inclined plane is lower than that of the rolls on the other side. For example... Figure 3 As shown, the sample 3, which has a right-angled trapezoidal side and includes an upper roll 1 and a lower roll 2, moves along the direction of the arrow, which indicates the rolling direction. The speed of the roll located on the hypotenuse side, i.e., the rotational speed of the upper roll 1, is less than that of the lower roll 2. Since the contact area between the upper roll 1 and the hypotenuse of the right-angled trapezoid of the sample 3 is large, while the contact area between the lower roll 2 and the right-angled side of the right-angled trapezoid of the sample is small, excess metal during the rolling process can flow from near the upper roll 1 to near the lower roll 2. Furthermore, the high rotational speed of the roll 2 reduces the problem of metal flow obstruction in the rolling direction, thus avoiding excessive rubbing between the roll and the sample, which would lead to large errors in texture and performance testing and a significant deviation from the actual results.

[0032] Furthermore, the asynchronous ratio of the asynchronous rolling... Satisfy the following formula: ; in, L2 is the absolute value of the difference between the lower base length L2 and the upper base length L1 of the right trapezoidal sample, or the length L2 of the wedge base. H is the height of the right trapezoidal sample or the height of the wedge. That is, when the side of the sample is a right trapezoid, H is H1, and when the side of the sample is a wedge, H is H2.

[0033] Preferably, the minimum linear speed of the roll is 8 mm / s - 10 mm / s.

[0034] The rolling process is simulated using ABAQUS, COMSOL Multiphysics, ANSYS, or DEFORM software. The simulation includes: modeling and defining the material properties of the rolls and samples; setting the simulation time and step size; setting the friction coefficient according to actual conditions; setting the rolling speed and roll linear velocity according to actual conditions; meshing and performing calculations.

[0035] In this embodiment of the invention, after constructing the initial model, material properties such as thermal conductivity and density are defined for the rolls and steel plate. An analysis step is created, using the Dynamic, Explicit module, and the simulation time and step size are set to 22s and 0.12s respectively. The interaction between the upper and lower rolls and the steel plate is set, with a friction coefficient of 0.35. Boundary conditions are defined, setting the rotational angular velocity of the upper and lower rolls and the moving speed of the steel plate to 0.4rad / s and 10mm / s respectively, while restricting movement in other directions. Meshments are created for the rolls and steel plate, with approximate global dimensions of 4 and 2 respectively. Finally, a Job is created for calculation.

[0036] This invention also provides a high-throughput testing system for the properties of metallic materials, comprising: a sample preparation module for preparing samples with wedge-shaped or right-angled trapezoidal sides; a software simulation module for simulating the rolling process; a calibration module for comparing the length and width of the actual rolled sample with the length and width of the simulated rolled sample, calculating the error value of the length and width, and calibrating the positions of different reduction amounts of the actual rolled sample based on the simulated rolling results when the error value is less than a preset value; and a detection module for sampling and detecting the properties based on the positions of the different reduction amounts.

[0037] When the side of the sample is a right trapezoid, the ratio of the length of the lower base to the length of the upper base of the right trapezoid is not greater than 1.25, the ratio of the width to the height of the lower base of the right trapezoid is not less than 7, and the ratio of the height to the length of the lower base is 3-7; when the side of the sample is wedge-shaped, it is formed by extending the waists on both sides of the upper base of the right trapezoid.

[0038] The right-angled trapezoidal sample is rolled using rolls, wherein the radius of the rolls used for rolling is at least twice the height of the right-angled trapezoidal sample, and the reduction in the initial stage of rolling is not less than 10%.

[0039] Both simulated rolling and actual rolling employ asynchronous rolling, where the linear velocity of the rolls on the inclined side is lower than that of the rolls on the other side.

[0040] The asynchronous ratio of the asynchronous rolling Satisfy the following formula: ; in, L is the absolute value of the difference between the length of the lower base and the upper base of the right trapezoidal sample or the length of the wedge base, and L is the height of the right trapezoidal sample or the height of the wedge.

[0041] The minimum linear speed of the rolls is 8 mm / s - 10 mm / s.

[0042] The rolling process was simulated using Abaqus software. The simulation included: modeling and defining the material properties of the rolls and samples; setting the simulation time and step size; setting the friction coefficient according to actual conditions; setting the rolling speed and roll linear velocity according to actual conditions; meshing and performing calculations.

[0043] This invention also provides a computer storage medium storing a computer program that, when executed, implements the following method: designing the dimensions of a wedge-shaped or right-angled trapezoidal sample for sample processing; modeling based on the dimensions and simulating the rolling process; comparing the length and width of the actual rolled sample with the length and width of the simulated rolled sample; calculating the error value of the length and width; when the error value is less than a preset value; calibrating the positions of different reduction amounts of the actual rolled sample based on the results of the simulated rolling; and sampling and testing the performance based on the positions of the different reduction amounts.

[0044] When the side of the sample is a right trapezoid, the ratio of the length of the lower base to the upper base of the right trapezoid sample is not greater than 5(1-r), the ratio of the width to the height of the lower base of the right trapezoid sample is not less than 7, and the ratio of the height to the length of the lower base of the right trapezoid is 3-7, where r is the initial compression rate; when the side of the sample is wedge-shaped, it is formed by extending the waists on both sides of the upper base of the right trapezoid sample.

[0045] The right-angled trapezoidal sample is rolled using rolls, wherein the radius of the rolls used for rolling is at least twice the height of the right-angled trapezoidal sample, and the reduction in the initial stage of rolling is not less than 10%.

[0046] Both simulated rolling and actual rolling employ asynchronous rolling, where the linear velocity of the rolls on the inclined side is lower than that of the rolls on the other side.

[0047] The asynchronous ratio of the asynchronous rolling Satisfy the following formula: ; in, L is the absolute value of the difference between the length of the lower base and the upper base of the right trapezoidal sample or the length of the wedge base, and L is the height of the right trapezoidal sample or the height of the wedge.

[0048] The minimum linear speed of the rolls is 8 mm / s - 10 mm / s.

[0049] To verify that the high-throughput testing method provided by this invention achieves the same effect as rolling multiple samples with different reduction rates, this invention employs a micro-cantilever beam testing method under different reduction rates to determine mechanical properties. The testing method is as shown in the invention patent publication number CN118335255A. Using the same micro-cantilever beam shape and size, the strength of the micro-cantilever beam is measured. The strength of the micro-cantilever beam is measured at at least three points under a uniform reduction rate, and the average value is taken.

[0050] The embodiments of this invention use Q235B steel, and all are illustrated using samples with right-angled trapezoidal sides.

[0051] To better illustrate the embodiments of the present invention, the present invention will be further described in detail below through specific examples.

[0052] Example 1

[0053] This invention provides a high-throughput detection method for the properties of metallic materials, comprising: S1. Prepare a sample with a right-angled trapezoidal side. Cut the sample into the shape to be rolled using wire cutting. The sample dimensions are: L1=10mm, L2=45mm, L3=320mm, H1=200mm.

[0054] S2. The wedge-shaped or right-angled trapezoidal sample is rolled using rolls with a constant roll gap. The roll radius is 600 mm, the initial reduction is 10%, and during rolling, the upper and lower rolls use the same diameter and rotational speed, with a rolling speed of 8 mm / s. The rolled sample is shown below. Figure 4 As shown.

[0055] S3. The rolling process is simulated using software. The length and width of the actual rolled sample are compared with those of the simulated rolled sample. The error values ​​of the length and width are calculated. The calculation shows that the error values ​​of the length and width are both less than 2%. Based on the results of the simulated rolling, the positions of different reduction amounts of the actual rolled sample are calibrated.

[0056] S4. Based on the locations of the different reduction amounts, samples are taken to test the strength of the microcantilever beam.

[0057] Example 2

[0058] This invention provides a high-throughput detection method for the properties of metallic materials, comprising: S1. Prepare a sample with a right-angled trapezoidal side. Cut the sample into the shape to be rolled using wire cutting. The sample dimensions are: L1=8mm, L2=36mm, L3=260mm, H1=108mm.

[0059] S2. The wedge-shaped or right-angled trapezoidal sample is rolled using rolls with a constant roll gap. The roll radius is 600 mm, the initial reduction is 10%, and during the rolling process, the upper and lower rolls use the same diameter and rotation speed, with a rolling speed of 9 mm / s.

[0060] S3. The rolling process is simulated using software. The length and width of the actual rolled sample are compared with those of the simulated rolled sample. The error values ​​of the length and width are calculated. The calculation shows that the error values ​​of the length and width are both less than 2%. Based on the results of the simulated rolling, the positions of different reduction amounts of the actual rolled sample are calibrated.

[0061] S4. Based on the locations of the different reduction amounts, samples are taken to test the strength of the microcantilever beam.

[0062] Example 3

[0063] This invention provides a high-throughput detection method for the properties of metallic materials, comprising: S1. Prepare a sample with a right-angled trapezoidal side. Cut the sample into the shape to be rolled using wire cutting. The sample dimensions are: L1=15mm, L2=65mm, L3=460mm, H1=250mm.

[0064] S2. The wedge-shaped or right-angled trapezoidal sample is rolled using rolls with a constant roll gap. The roll radius is 600 mm, the initial reduction is 10%, and during the rolling process, the upper and lower rolls use the same diameter and rotation speed, with a rolling speed of 10 mm / s.

[0065] S3. The rolling process is simulated using software. The length and width of the actual rolled sample are compared with those of the simulated rolled sample. The error values ​​of the length and width are calculated. The calculation shows that the error values ​​of the length and width are both less than 2%. Based on the results of the simulated rolling, the positions of different reduction amounts of the actual rolled sample are calibrated.

[0066] S4. Based on the locations of the different reduction amounts, samples are taken to test the strength of the microcantilever beam.

[0067] Example 4

[0068] This invention provides a high-throughput detection method for the properties of metallic materials, comprising: S1. Prepare a sample with a right-angled trapezoidal side. Cut the sample into the shape to be rolled using wire cutting. The sample dimensions are: L1=10mm, L2=45mm, L3=320mm, H1=200mm.

[0069] S2. The wedge-shaped or right-angled trapezoidal sample is rolled using rolls with a constant roll gap. The roll radius is 600 mm, and the initial reduction is 10%. Asynchronous rolling is used, with the upper roll linear velocity being 8 mm / s. The lower roll linear velocity is calculated using the following formula: ; =1.16, the linear speed of the lower roll is 8×1.16mm / s, that is, 9.3mm / s.

[0070] S3. The rolling process is simulated using software. The length and width of the actual rolled sample are compared with those of the simulated rolled sample. The error values ​​of the length and width are calculated. The calculation shows that the error values ​​of the length and width are both less than 2%. Based on the results of the simulated rolling, the positions of different reduction amounts of the actual rolled sample are calibrated.

[0071] S4. Based on the locations of the different reduction amounts, samples are taken to test the strength of the microcantilever beam.

[0072] Example 5

[0073] This invention provides a high-throughput detection method for the properties of metallic materials, comprising: S1. Prepare a sample with a right-angled trapezoidal side. Cut the sample into the shape to be rolled using wire cutting. The sample dimensions are: L1=15mm, L2=65mm, L3=460mm, H1=250mm.

[0074] S2, S2, The wedge-shaped or right-angled trapezoidal sample is rolled using rolls with a constant roll gap. The roll radius is 600 mm, the initial reduction is 10%, asynchronous rolling is used, and the upper roll linear velocity is 10 mm / s. The lower roll linear velocity is calculated using the following formula: ; =1.18, the linear speed of the lower roll is 10×1.18, which is 11.8mm / s.

[0075] S3. The rolling process is simulated using software. The length and width of the actual rolled sample are compared with those of the simulated rolled sample. The error values ​​of the length and width are calculated. The calculation shows that the error values ​​of the length and width are both less than 2%. Based on the results of the simulated rolling, the positions of different reduction amounts of the actual rolled sample are calibrated.

[0076] S4. Based on the locations of the different reduction amounts, samples are taken to test the strength of the microcantilever beam.

[0077] Experimental Example

[0078] Prepare seven plates of the same size with reduction amounts of 10%, 20%, 30%, 40%, 50%, 60%, and 70%, and roll them. Take a sample from the middle of the rolled sample, and for each reduction amount, measure the strength of the micro-cantilever beam at five points, and take the average value.

[0079] Comparative Example 1 Unlike Example 1, in step S1 of this comparative example, an isosceles trapezoid is prepared, i.e., as shown in Example 1. Figure 5 As shown, the dimensions of the isosceles trapezoid are: L1=10mm, L2=45mm, L3=320mm, H1=200mm.

[0080] The strength of the microcantilever beam was tested by sampling at locations with different reduction amounts.

[0081] Comparative Example 2 Unlike Example 1, in step S1 of this comparative example, a sample with a right-angled trapezoidal side is prepared. The sample is cut into pieces to be rolled using wire cutting, and the dimensions of the samples are: L1=10mm, L2=50mm, L3=320mm, H1=200mm.

[0082] The strength of the microcantilever beam was tested by sampling at locations with different reduction amounts.

[0083] Comparative Example 3 Unlike Example 1, in step S1 of this comparative example, a sample with a right-angled trapezoidal side is prepared. The sample is cut into the shape to be rolled using wire cutting, and the dimensions of the sample are: L1=10mm, L2=45mm, L3=320mm, H1=2.8×L2=126mm.

[0084] The strength of the microcantilever beam was tested by sampling at locations with different reduction amounts.

[0085] Comparative Example 4 Unlike Example 1, in step S1 of this comparative example, a sample with a right-angled trapezoidal side is prepared. The sample is cut into the shape to be rolled using wire cutting. The dimensions of the sample are L1=10mm, L2=45mm, L3=320mm, and H1=7.2×L2=324mm. For ease of processing, a value of 325mm is used.

[0086] The strength of the microcantilever beam was tested by sampling at locations with different reduction amounts.

[0087] Comparative Example 5 Unlike Example 1, in step S2 of this comparative example, a constant-pitch roll is used to roll the wedge-shaped or right-angled trapezoidal sample, and the roll radius is 200mm.

[0088] The strength of the microcantilever beam was tested by sampling at locations with different reduction amounts.

[0089] The yield strengths of the samples prepared for the above embodiments and comparative examples with different reduction rates are shown in Table 1.

[0090] Table 1. Strength of samples prepared in each embodiment and comparative example at different reduction rates.

[0091] 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 principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-throughput method for detecting the properties of metallic materials, characterized in that, include: Prepare samples with wedge-shaped or right-angled trapezoidal sides; The wedge-shaped or right-angled trapezoidal sample is rolled using rolls with a constant roll gap; The rolling process is simulated using software. The length and width of the actual rolled sample are compared with those of the simulated rolled sample. The error values ​​of the length and width are calculated. When the error value is less than the preset value, the positions of different reductions of the actual rolled sample are calibrated based on the results of the simulated rolling. Sampling was performed at locations with different reduction amounts, and the performance was tested.

2. The high-throughput detection method according to claim 1, characterized in that, When the side of the sample is a right trapezoid, the ratio of the length of the lower base to the upper base of the right trapezoid sample is not greater than 5 (1-r), the ratio of the width to the height of the lower base of the right trapezoid sample is not less than 7, and the ratio of the height to the length of the lower base of the right trapezoid is 3-7, where r is the initial compression rate. When the side of the sample is wedge-shaped, it is formed by extending the waists on both sides of the upper base of the right trapezoidal sample.

3. The high-throughput detection method according to claim 1, characterized in that, The right-angled trapezoidal sample is rolled using rolls, wherein the radius of the rolls used for rolling is at least twice the height of the right-angled trapezoidal sample, and the reduction in the initial stage of rolling is not less than 10%.

4. The high-throughput detection method according to claim 3, characterized in that, Both simulated rolling and actual rolling employ asynchronous rolling, where the linear velocity of the rolls on the inclined side is lower than that of the rolls on the other side.

5. The high-throughput detection method according to claim 4, characterized in that, The asynchronous ratio of the asynchronous rolling Satisfy the following formula: ； in, L is the absolute value of the difference between the length of the lower base and the upper base of the right trapezoidal sample or the length of the wedge base, and L is the height of the right trapezoidal sample or the height of the wedge.

6. The high-throughput detection method according to claim 5, characterized in that, The minimum linear speed of the rolls is 8 mm / s - 10 mm / s.

7. The high-throughput detection method according to claim 1, characterized in that, The rolling process is simulated using software such as ABAQUS, COMSOL Multiphysics, ANSYS, or DEFORM.

8. The high-throughput detection method according to claim 6, characterized in that, The simulated rolling process includes: Model and define the material properties of the rolls and samples; Set the simulation time and step size; Set the friction coefficient according to the actual situation; Set the roll linear speed according to the actual situation; Divide the grid and perform calculations.

9. A high-throughput testing system for the properties of metallic materials, characterized in that, include: A sample preparation module, which is used to prepare samples with wedge-shaped or right-angled trapezoidal sides; The software simulation module uses software to simulate the rolling process; The calibration module compares the length and width of the actual rolled sample with the length and width of the simulated rolled sample, calculates the error value of the length and width, and when the error value is less than the preset value, it calibrates the position of the actual rolled sample with different reductions based on the results of the simulated rolling. The detection module samples and tests the performance based on the locations of different compression amounts.

10. A computer storage medium, characterized in that, The computer storage medium stores a computer program that, when executed, performs the following method: Design the dimensions of wedge-shaped or right-angled trapezoidal samples for sample processing; Based on the dimensions, a model is created and the rolling process is simulated. The length and width of the actual rolled sample are compared with the length and width of the simulated rolled sample. The error values ​​of the length and width are calculated. When the error value is less than the preset value, the positions of different reduction amounts of the actual rolled sample are calibrated based on the results of the simulated rolling. Sampling was performed at locations with different reduction amounts, and the performance was tested.

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