Alloy hot cracking tendency evaluation method and system

Abstract

The invention discloses an alloy hot cracking tendency assessment method and system, and belongs to the technical field of casting, the method comprises the following steps: obtaining element components of a target alloy to be assessed; according to the element components of the target alloy, the solidification behavior of the target alloy is analyzed through thermodynamics, a solidification curve is obtained through calculation, the solidification curve is fitted, and a temperature-solid phase rate function of the target alloy is obtained; taking the second derivative characteristic of the temperature-solid phase rate function of the target alloy as an evaluation index of the hot cracking tendency, performing second derivation on the temperature-solid phase rate function of the target alloy, and evaluating the hot cracking tendency of the target alloy according to a quantized index value; wherein the second-order derivative characteristic comprises a peak value of a second-order derivative or a projection area of the second-order derivative. According to the method, the alloy hot cracking tendency can be accurately and rapidly evaluated.

Description

Technical Field

[0001] The present invention belongs to the technical field of casting, and particularly relates to a method and system for evaluating the hot cracking tendency of alloys. Background Art

[0002] The statements in this part only provide background technical information related to the present invention, and do not necessarily constitute prior art.

[0003] In recent years, with the development of industries such as new energy vehicles, artificial intelligence, UHV power transmission and distribution, and aerospace, the demand for high-performance complex castings has become increasingly urgent. Castings are developing towards the direction of thin walls, integration, and large sizes. Therefore, more stringent requirements are put forward for the castability of alloys.

[0004] Hot cracking is a common defect in the casting process, and the hot cracking tendency is one of the important indicators for evaluating the castability of alloys. Alloys with a large hot cracking tendency are prone to internal microcracks, internal stresses, etc. during the casting process, resulting in low performance of the castings, difficulty in forming complex components, and even inability to produce using the casting process. Accurately predicting and evaluating the castability of alloys, especially the hot cracking tendency, is an important prerequisite for the production of high-end complex castings. The existing evaluation of the hot cracking tendency of alloys has long relied on experimental methods (such as the constrained bar die method) or empirical models (such as the Clyne-Davies time ratio method), but they have certain limitations:

[0005] (1) Strong dependence on experiments, with errors in manual operations, affecting the experimental accuracy. Moreover, the experiments require complex molds and sensors, with high costs and low efficiency;

[0006] (2) The empirical model is over-simplified, ignoring the dynamic curvature changes of the solidification path, and the accuracy is limited;

[0007] (3) Lack of universality. After the composition or process changes, new experiments are required, making it difficult to guide the development of new materials.

[0008] The limitations of the above-mentioned methods for evaluating the hot cracking tendency of alloys directly affect the accuracy of the evaluation results of the hot cracking tendency, leading to unstable alloy production processes and also reducing the performance of the castings. The existing methods for evaluating the hot cracking tendency of alloys can no longer meet the production requirements of high-end complex castings, restricting the development and application of new materials as well as the design of the structure and size of complex castings. Summary of the Invention

[0009] To address the deficiencies of the above-mentioned existing technologies, the present invention provides a method and system for evaluating the hot cracking tendency of alloys. Based on thermodynamic simulation and theoretical calculation, specific mathematical features are analyzed and selected according to the solidification kinetics theory, quantified as hot cracking tendency evaluation indicators, and then the hot cracking tendency of the alloy is evaluated according to the quantified indicator values. The present invention can accurately quantify the solidification dynamic characteristics of the alloy and achieve accurate and rapid evaluation of the hot cracking tendency of the alloy.

[0010] In the first aspect, the present invention provides a method for evaluating the hot cracking tendency of alloys.

[0011] A method for evaluating the hot cracking tendency of alloys includes:

[0012] Obtain the elemental composition of the target alloy to be evaluated;

[0013] According to the elemental composition of the target alloy, analyze the solidification behavior of the target alloy through thermodynamic analysis, calculate the solidification curve, and fit the solidification curve to obtain the temperature-solid fraction function of the target alloy;

[0014] Take the second derivative feature of the temperature-solid fraction function of the target alloy as the evaluation index of the hot cracking tendency, perform a second-order derivative of the temperature-solid fraction function of the target alloy, and evaluate the hot cracking tendency of the target alloy according to the quantified index value; wherein, the second derivative feature includes the peak value of the second derivative or the projected area of the second derivative.

[0015] In the second aspect, the present invention provides a system for evaluating the hot cracking tendency of alloys.

[0016] A system for evaluating the hot cracking tendency of alloys includes:

[0017] A data acquisition module for obtaining the elemental composition of the target alloy to be evaluated;

[0018] A data processing module for analyzing the solidification behavior of the target alloy through thermodynamic analysis according to the elemental composition of the target alloy, calculating the solidification curve, and fitting the solidification curve to obtain the temperature-solid fraction function of the target alloy;

[0019] A hot cracking tendency evaluation module for taking the second derivative feature of the temperature-solid fraction function of the target alloy as the evaluation index of the hot cracking tendency, performing a second-order derivative of the temperature-solid fraction function of the target alloy, and evaluating the hot cracking tendency of the target alloy according to the quantified index value; wherein, the second derivative feature includes the peak value of the second derivative or the projected area of the second derivative.

[0020] In the third aspect, the present invention also provides an electronic device, including: a memory for storing executable instructions; a processor for implementing the above-mentioned evaluation of the hot cracking tendency of alloys when executing the executable instructions stored in the memory.

[0021] Fourthly, the present invention also provides a computer-readable storage medium storing executable instructions, which, when executed by a processor, are used to implement the above-mentioned evaluation of the hot cracking tendency of the alloy.

[0022] Fifthly, the present invention also provides a computer program product, which includes executable instructions stored in a computer-readable storage medium; wherein, when the processor of the electronic device reads the executable instructions from the computer-readable storage medium and executes the executable instructions, the above-mentioned evaluation of the hot cracking tendency of the alloy is realized.

[0023] The above one or more technical solutions have the following beneficial effects:

[0024] 1. The present invention provides a method and system for evaluating the hot cracking tendency of an alloy. Based on thermodynamic simulation and theoretical calculation, specific mathematical features are analyzed and selected according to the solidification kinetics theory, quantified as hot cracking tendency evaluation indexes, and then the hot cracking tendency of the alloy is evaluated according to the quantified index values. The present invention can accurately quantify the solidification dynamic characteristics of the alloy and realize the accurate and rapid evaluation of the hot cracking tendency of the alloy.

[0025] 2. The present invention quantifies the hot cracking tendency of the alloy through the second derivative analysis of the temperature-solid fraction function. According to the correlation between the feeding capacity and the shape of the solidification curve revealed by the solidification kinetics theory, the second derivative of the alloy temperature-solid fraction function is innovatively introduced, and the concavity and convexity characteristics of the solidification curve are transformed into computable mathematical indexes, that is, the peak value or projected area of the second derivative. This index is directly correlated with the magnitude of the hot cracking tendency of the alloy, and the hot cracking tendency of the alloy can be quickly and accurately evaluated through simple calculation. Compared with the traditional evaluation methods based on experiments or empirical models, the present invention does not require experimental devices and can predict and evaluate the hot cracking tendency of the alloy only through thermodynamic software and mathematical tools, effectively avoiding the problems of human error and equipment error in traditional experimental schemes. In addition, on this basis, the present invention can also carry out process design and adjustment according to the obtained curves, such as introducing parameters such as cooling rate and casting temperature for multi-parameter coupling expansion, establishing a mathematical model suitable for complex processes, so as to realize the performance evaluation of cast alloys for complex processes.

[0026] The advantages of the additional aspects of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0027] The specification drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0028] Figure 1Flow chart of the alloy hot cracking tendency evaluation method proposed by the embodiments of the present invention;

[0029] Figure 2 Schematic diagram of the hot cracking die applied in the embodiments of the present invention;

[0030] Figure 3 Explanation diagram of the calculation formula of the hot cracking tendency coefficient in the embodiments of the present invention;

[0031] Figure 4 Schematic diagram of the temperature-solid phase rate function curve of alloy series 1 designed in the embodiments of the present invention;

[0032] Figure 5 Schematic diagram of the second derivative curve of the temperature-solid phase rate function of alloy series 1 designed in the embodiments of the present invention;

[0033] Figure 6 Schematic diagram of the hot cracking tendency coefficient obtained through experiments for alloy series 1 designed in the embodiments of the present invention;

[0034] Figure 7 Schematic diagram of the temperature-solid phase rate function curve of alloy series 2 designed in the embodiments of the present invention;

[0035] Figure 8 Schematic diagram of the second derivative curve of the temperature-solid phase rate function of alloy series 2 designed in the embodiments of the present invention;

[0036] Figure 9 Schematic diagram of the projected area of the second derivative of the temperature-solid phase rate function of alloy series 2 designed in the embodiments of the present invention;

[0037] Figure 10 Schematic diagram of the hot cracking tendency coefficient obtained through experiments for alloy series 2 designed in the embodiments of the present invention. Detailed implementation manners

[0038] It should be noted that the following detailed description is exemplary only for describing the specific implementation manners, aiming to provide further explanation of the present invention and is not intended to limit the exemplary embodiments of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] Embodiment 1

[0040] In view of the limitations of the traditional alloy hot cracking tendency evaluation method, this embodiment proposes an alloy hot cracking tendency evaluation method, as Figure 1 shown, which specifically includes the following steps:

[0041] Step S1: Obtain the elemental composition of the target alloy to be evaluated. Among them, the target alloy is composed of various different elemental compositions and different elemental composition contents.

[0042] Step S2: According to the elemental composition of the target alloy, thermodynamically analyze the solidification behavior of the target alloy, calculate the solidification curve, and fit the solidification curve to obtain the temperature-solid fraction function of the target alloy.

[0043] In this embodiment, with the aid of a computer as an auxiliary analysis tool, existing computer software is used for analysis and calculation. Specifically, taking the elemental compositions and elemental composition contents of the obtained target alloy as input data, the Scheil-Gulliver non-equilibrium solidification model in the Thermo-Calc thermodynamic calculation platform, a thermodynamic calculation software, is used to analyze the solidification behavior of the target alloy, calculate the solidification curve of the target alloy, and then according to the solidification curve, the temperature-solid fraction function of the target alloy is fitted using computer drawing software such as Origin software.

[0044] Step S3: Take the second derivative feature of the temperature-solid fraction function of the target alloy as an evaluation index for the hot cracking tendency, take the second derivative of the temperature-solid fraction function of the target alloy, and evaluate the hot cracking tendency of the target alloy according to the quantified index value.

[0045] According to the analysis of solidification kinetics theory, the concavity and convexity characteristics of the solidification curve reflect the sudden change of feeding ability. The upper convex region corresponds to the stage of rapid increase in solid fraction. At this time, the dendritic skeleton forms, the liquid-phase feeding channel shrinks sharply, and local stress concentration is significant; while the lower concave region reflects the liquid film fracture or brittle phase precipitation at the end of solidification, which will further exacerbate the hot cracking risk. Based on the above analysis, it can be clarified that there is a correlation between the solidification curve and hot cracking, and the concavity and convexity characteristics of the solidification curve can reflect the magnitude of the hot cracking tendency of the alloy. Therefore, in this embodiment, the mathematical characteristics of this solidification curve are directly quantified as an evaluation index for the hot cracking tendency. Among them, to better reflect the hot cracking tendency, this embodiment innovatively introduces the second derivative feature of the temperature-solid fraction function, and proposes to use the peak value of the second derivative or the projected area of the second derivative as the evaluation index, and accurately and quickly evaluate and predict the hot cracking tendency of the alloy by quantifying the index value.

[0046] Among them, when taking the peak value of the second derivative as the evaluation index, the sum of the absolute values of all peak values of the second derivative of the calculated temperature-solid fraction function is used as the quantified index value, and the hot cracking tendency of the target alloy is evaluated according to this index value. The sum of the absolute values of all peak values of the second derivative of the temperature-solid fraction function is positively correlated with the hot cracking tendency. The larger the quantified index value, the greater the hot cracking tendency of the target alloy.

[0047] When the projected area of the second derivative is used as the evaluation index, the projected area of the second derivative of the calculated temperature-solid fraction function is used as the quantified index value, and the hot cracking tendency of the target alloy is evaluated according to this index value. The projected area of the second derivative of the temperature-solid fraction function is positively correlated with the hot cracking tendency. The larger the quantified index value, the greater the hot cracking tendency of the target alloy. Among them, the projected area of the second derivative is the sum of the surface integrals after taking the absolute value of the second derivative, and the calculation formula is:

[0048] HTS = ∫|f”(T)|dT;

[0049] In the above formula, HTS represents the projected area, f”(T) represents the second derivative, and T represents the temperature.

[0050] Furthermore, through the following Examples 1 and 2, the evaluation of the hot cracking tendency of the alloy obtained by using the present invention and the traditional experimental method is verified.

[0051] The following are the methods and steps for evaluating the hot cracking tendency of the alloy by using the traditional experimental method:

[0052] The equal-diameter unequal-length constrained bar method is adopted to experimentally verify the hot cracking tendency of the designed alloy. The mold used in the experiment is as Figure 2 shown. After completing this experiment, the hot cracking sensitivity coefficient calculation formula is used to calculate the hot cracking tendency of the designed alloy, as Figure 3 shown. The calculation formula of the hot cracking sensitivity coefficient is:

[0053] HTS = ∑F length F location F crack ;

[0054] Among them, F crack represents the coefficient of the crack width. When F crack is 0, 1, 2, 3, 4, it corresponds to the phenomena of no crack, hairline crack, micro crack, severe crack, and constrained bar fracture on the alloy surface respectively. In the formula, F length represents the hot cracking coefficient of the constrained bars with different lengths. When the fracture occurs at the shortest bar, its hot cracking coefficient is 32; when the fracture occurs at the second shortest bar, its hot cracking coefficient is 16; when the fracture occurs at the longest bar, its hot cracking coefficient is 4; when the fracture occurs at the second longest bar, its hot cracking coefficient is 8. In the formula, F location represents the fracture position coefficient of the constrained bar. When the fracture position is at the position where the constrained bar is connected to the gating system, the coefficient is set to 1; when the fracture position is at the position where the constrained bar is connected to the spherical cavity, the coefficient is set to 2; when the fracture position is at the middle position between the spherical cavity and the gating system, the coefficient is set to 3.

[0055] Example 1

[0056] Alloys with different elemental compositions of Al-2Mg-2Cu-xZn (x = 2, 4, 6, 9, 12 (wt.%)) are designed and named Alloy Series 1. Among them, the alloy Al-2Mg-2Cu-xZn refers to an alloy composed of multiple elemental components Al, Mg, Cu, and Zn in a mass fraction ratio of 1:2:2:x.

[0057] The Scheil-Gulliver non-equilibrium solidification model in the Thermo-Calc thermodynamics calculation platform is used to calculate the solidification curves of Alloy Series 1. According to the solidification curves, the "temperature-solid fraction" function is fitted using Origin software. The curve of this function is as Figure 4 shown, with the horizontal axis being the mole fraction of solid and the vertical axis being the Temperature.

[0058] The second derivative of the "temperature-solid fraction" function of each alloy is taken to obtain the curve of its second derivative function, as Figure 5 shown.

[0059] Taking the peak value of the second derivative as the evaluation index, the hot cracking tendency of each alloy in Alloy Series 1 is evaluated and judged according to this peak value of the second derivative. Then, the order of the hot cracking tendency of each alloy in this alloy series 1 is as follows:

[0060] Al-2Mg-2Cu-12Zn > Al-2Mg-2Cu-9Zn > Al-2Mg-2Cu-2Zn > Al-2Mg-2Cu-6Zn > Al-2Mg-2Cu-4Zn.

[0061] In addition, according to the composition of Al-2Mg-2Cu-xZn (x = 2, 4, 6, 9, 12 (wt.%)), the materials are heated to 750 °C, refined, and cast into a preheated hot cracking mold (300 °C). Then, the hot cracking tendency of the alloy is calculated and evaluated according to the hot cracking sensitivity coefficient calculation formula, as Figure 6 shown. The order of the hot cracking tendency is as follows:

[0062] Al-2Mg-2Cu-12Zn > Al-2Mg-2Cu-9Zn > Al-2Mg-2Cu-2Zn > Al-2Mg-2Cu-6Zn > Al-2Mg-2Cu-4Zn.

[0063] As can be seen from the above, the evaluation results of the hot cracking tendency obtained by the method and experiment proposed in the present invention are consistent, which further verifies the effectiveness of the method proposed in the present invention.

[0064] Example 2

[0065] Alloys with different elemental compositions of Al-7Si-0.35Mg-xCu (x = 0, 0.5, 1, 1.5, 2, (wt.%)), are named Alloy Series 2. Among them, the alloy Al-7Si-0.35Mg-xCu refers to an alloy composed of multiple elemental components Al, Si, Mg, and Cu in a mass fraction ratio of 1:7:0.35:x.

[0066] The Scheil-Gulliver non-equilibrium solidification model in the Thermo-Calc thermodynamics calculation platform is used to calculate the solidification curves of Alloy Series 2. According to the solidification curves, the "temperature-solid fraction" function is fitted using Origin software, and the curve of this function is as Figure 7 shown.

[0067] The second derivative of the "temperature-solid fraction" function of each alloy is calculated to obtain the curve of its second derivative function, as Figure 8 shown.

[0068] Taking the projected area of the second derivative as the evaluation index, the hot cracking tendency is evaluated and judged based on this projected area of the second derivative, as Figure 9 shown. Then, the hot cracking tendency of each alloy in this Alloy Series 2 is as follows:

[0069] Al-7Si-0.35Mg-2Cu > Al-7Si-0.35Mg-1.5Cu > Al-7Si-0.35Mg-1Cu > Al-7Si-0.35Mg-0.5Cu > Al-7Si-0.35Mg-0Cu.

[0070] In addition, according to the composition of Al-7Si-0.35Mg-xCu (x = 0, 0.5, 1, 1.5, 2, (wt.%)), the materials are heated to 750 °C, refined, and cast into a preheated hot cracking mold (300 °C). Then, according to the calculation formula of the hot cracking sensitivity coefficient, the hot cracking tendency of the alloy is calculated and evaluated, as Figure 10 shown. The hot cracking tendency is as follows:

[0071] Al-7Si-0.35Mg-2Cu > Al-7Si-0.35Mg-1.5Cu > Al-7Si-0.35Mg-1Cu > Al-7Si-0.35Mg-0.5Cu > Al-7Si-0.35Mg-0Cu.

[0072] As can be seen from the above, the evaluation results of the hot cracking tendency obtained by the method and experiment proposed in the present invention are consistent, which further verifies the effectiveness of the method proposed in the present invention.

[0073] Example 2

[0074] This embodiment provides an alloy hot cracking tendency evaluation system, including:

[0075] A data acquisition module, configured to acquire the elemental composition of a target alloy to be evaluated;

[0076] A data processing module, configured to, according to the elemental composition of the target alloy, analyze the solidification behavior of the target alloy through thermodynamics, calculate a solidification curve, fit the solidification curve, and obtain a temperature-solid fraction function of the target alloy;

[0077] A hot cracking tendency evaluation module, configured to use the second derivative feature of the temperature-solid fraction function of the target alloy as an evaluation index for the hot cracking tendency, perform a second-order derivative on the temperature-solid fraction function of the target alloy, and evaluate the hot cracking tendency of the target alloy according to the quantified index value; wherein, the second derivative feature includes the peak value of the second derivative or the projected area of the second derivative.

[0078] Embodiment III

[0079] This embodiment provides an electronic device, including: a memory, configured to store executable instructions; a processor, configured to, when executing the executable instructions stored in the memory, implement the above method provided by this embodiment.

[0080] Embodiment IV

[0081] This embodiment further provides a computer-readable storage medium storing executable instructions, which, when executed by a processor, will cause the processor to execute the above method provided by this embodiment.

[0082] Embodiment V

[0083] This embodiment provides a computer program product, which includes executable instructions, and the executable instructions are a kind of computer instructions; the executable instructions are stored in a computer-readable storage medium. When a processor of an electronic device reads the executable instructions from the computer-readable storage medium and the processor executes the executable instructions, the electronic device is caused to execute the above method provided by this embodiment.

[0084] The steps involved in Embodiments II to V above correspond to those in Method Embodiment I, and the specific implementation manners can refer to the relevant description part of Embodiment I. The term "computer-readable storage medium" should be understood to include a single medium or multiple media including one or more instruction sets; it should also be understood to include any medium that can store, encode, or carry an instruction set for execution by a processor and cause the processor to execute any method in the present invention.

[0085] Those skilled in the art should understand that the various modules or steps of the present invention described above can be implemented by a general-purpose computer device. Optionally, they can be implemented by program codes executable by a computing device, so that they can be stored in a storage device and executed by the computing device, or they can be separately fabricated into individual integrated circuit modules, or multiple modules or steps among them can be fabricated into a single integrated circuit module for implementation. The present invention is not limited to any specific combination of hardware and software.

[0086] The above are only the preferred embodiments of the present invention. Although the specific implementation manners of the present invention have been described in conjunction with the accompanying drawings, it is not a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications or deformations that can be made without creative efforts on the basis of the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A method for evaluating the hot cracking tendency of an alloy, characterized in that, including: obtaining the elemental composition of the target alloy to be evaluated; according to the elemental composition of the target alloy, thermodynamically analyzing the solidification behavior of the target alloy, calculating to obtain a solidification curve, and fitting the solidification curve to obtain a temperature-solid fraction function of the target alloy; using the second derivative feature of the temperature-solid fraction function of the target alloy as an evaluation index for hot cracking tendency, performing a second derivative on the temperature-solid fraction function of the target alloy, and evaluating the hot cracking tendency of the target alloy according to the quantified index value; wherein, the second derivative feature includes the peak value of the second derivative or the projected area of the second derivative.

2. The alloy hot cracking tendency evaluation method according to claim 1, wherein, The target alloy is composed of a variety of different elemental compositions and different elemental composition contents.

3. The method for evaluating the hot cracking tendency of an alloy according to claim 1, wherein The obtaining of the temperature-solid fraction function includes: using a computer as an auxiliary analysis tool, taking the obtained elemental compositions and elemental composition contents of the target alloy as input data, and adopting a non-equilibrium solidification model to calculate the solidification curve of the target alloy; fitting according to the solidification curve to obtain the temperature-solid fraction function of the target alloy.

4. The method for evaluating the hot cracking tendency of an alloy according to claim 1, characterized in that, The second derivative feature of the temperature-solid fraction function includes the peak value of the second derivative, taking the sum of the absolute values of all peak values of the calculated second derivative as the quantified index value, and evaluating the hot cracking tendency of the target alloy according to this index value; wherein, the sum of the absolute values of all peak values of the second derivative of the temperature-solid fraction function is positively correlated with the hot cracking tendency, and the larger the quantified index value, the greater the hot cracking tendency of the target alloy.

5. The method for evaluating the hot cracking tendency of an alloy according to claim 1, wherein The second derivative feature of the temperature-solid fraction function includes the projected area of the second derivative, taking the calculated projected area of the second derivative as the quantified index value, and evaluating the hot cracking tendency of the target alloy according to this index value; wherein, the projected area of the second derivative of the temperature-solid fraction function is positively correlated with the hot cracking tendency, and the larger the quantified index value, the greater the hot cracking tendency of the target alloy.

6. The alloy hot cracking tendency evaluation method according to claim 1, wherein, The projected area of the second derivative is the sum of the surface integrals after taking the absolute value of the second derivative, and the calculation formula is: HTS = ∫|f”(T)|dT; In the above formula, HTS represents the projected area, f”(T) represents the second derivative, and T represents the temperature.

7. An alloy hot cracking tendency evaluation system, characterized in that, including: a data acquisition module for obtaining the elemental composition of the target alloy to be evaluated; a data processing module for thermodynamically analyzing the solidification behavior of the target alloy according to the elemental composition of the target alloy, calculating to obtain a solidification curve, and fitting the solidification curve to obtain a temperature-solid fraction function of the target alloy; a hot cracking tendency evaluation module for using the second derivative feature of the temperature-solid fraction function of the target alloy as an evaluation index for hot cracking tendency, performing a second derivative on the temperature-solid fraction function of the target alloy, and evaluating the hot cracking tendency of the target alloy according to the quantified index value; wherein, the second derivative feature includes the peak value of the second derivative or the projected area of the second derivative.

8. An electronic device, characterized in that, including: a memory for storing executable instructions; a processor for implementing the method for evaluating the hot cracking tendency of an alloy according to any one of claims 1-6 when executing the executable instructions stored in the memory.

9. A computer-readable storage medium, characterized in that, storing executable instructions for causing the processor to implement the method for evaluating the hot cracking tendency of an alloy according to any one of claims 1-6 when executing the executable instructions.

10. A computer program product, characterized in that, The computer program product includes executable instructions stored in a computer-readable storage medium; When a processor of an electronic device reads the executable instructions from the computer-readable storage medium and executes the executable instructions, a method for evaluating the hot cracking tendency of an alloy according to any one of claims 1-6 is implemented.

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