Method, apparatus, electronic device, and storage medium for determining yield strength of alloy material

Abstract

The present application provides a method, an apparatus, an electronic device, and a storage medium for determining the yield strength of an alloy material. The method includes determining the average particle diameter corresponding to each of various precipitation phases in the alloy material, and the volume fraction corresponding to each of various precipitation phases in the alloy material; for each of the various precipitation phases in the alloy material, determining the yield strength increment of the precipitation phase by using the average particle diameter and the volume fraction corresponding to the precipitation phase; and determining the yield strength of the alloy material by using the yield strength increments of various precipitation phases. Compared with the prior art in which the yield strength of the alloy material is determined by means of a yield strength test, the efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of alloy materials, and in particular, to a method, device, electronic device, and storage medium for determining the yield strength of alloy materials. Background Art

[0002] As an important physical property of alloy materials, the yield strength is important for the application range of alloy materials. Therefore, in practical applications, it is usually necessary to determine the yield strength of alloy materials. Currently, the yield strength of alloy materials is mainly determined by means of yield strength testing, but the efficiency of this method is relatively low. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a method, device, electronic device, and storage medium for determining the yield strength of alloy materials, so as to solve the problem of low efficiency in determining the yield strength of alloy materials in the prior art.

[0004] The first aspect of the embodiments of the present application provides a method for determining the yield strength of alloy materials, including:

[0005] Determine the average particle diameter corresponding to each precipitate phase in the alloy material, and the volume fraction corresponding to each precipitate phase in the alloy material;

[0006] For each precipitate phase in the alloy material, use the average particle diameter and volume fraction corresponding to the precipitate phase to determine the yield strength increment of the precipitate phase;

[0007] Use the yield strength increments of various precipitate phases to determine the yield strength of the alloy material.

[0008] In one embodiment, using the average particle diameter and volume fraction corresponding to the precipitate phase to determine the yield strength increment of the precipitate phase specifically includes:

[0009] Use the average particle diameter and volume fraction corresponding to the precipitate phase to determine the first yield strength increment of the precipitate phase through the bypass mechanism and the second yield strength increment through the cutting mechanism;

[0010] When the first yield strength increment is greater than or equal to the second yield strength increment, determine the second yield strength increment as the yield strength increment of the precipitate phase; or,

[0011] When the first yield strength increment is less than the second yield strength increment, determine the first yield strength increment as the yield strength increment of the precipitate phase.

[0012] In one embodiment, the first yield strength increment of the precipitate phase through the bypass mechanism is calculated by the following formula:

[0013]

[0014] Among them, Δσ Orowan Specifically, it is the calculated first yield strength increment; Specifically, it is the average particle radius of the circular cross-section of the spherical precipitates on the random plane; r is specifically the average particle diameter of the precipitates; j is a preset constant; λ p Specifically, it is the distance between the intragranular precipitates; υ is specifically the Poisson's ratio of the matrix; b is specifically the Burgers vector; M is specifically the Taylor factor; G is specifically the shear modulus.

[0015] In one embodiment, the second yield strength increment of the precipitates through the cutting mechanism is calculated by the following formula:

[0016] Δσ = Δσ cs +Δσ ms ;

[0017] Among them,

[0018]

[0019] Δσ is specifically the calculated second yield strength increment; Δσ cs Specifically, it is the coherent strengthening increment between the particles of the precipitates and the alloy material substrate; Δσ ms Specifically, it is the mismatch modulus between the particles of the precipitates and the alloy material substrate; ε c Specifically, it is the lattice mismatch parameter; ΔG is specifically the shear modulus mismatch between the precipitates and the substrate; m is specifically the second preset constant; b is specifically the Burgers vector; M is specifically the Taylor factor; G is specifically the shear modulus; r is specifically the average particle diameter of the precipitates; f is specifically the volume fraction of the precipitates in the alloy material.

[0020] In one embodiment, using the yield strength increments of various precipitates to determine the yield strength of the alloy material specifically includes:

[0021] Sum or weighted sum the yield strength increments of various precipitates;

[0022] Determine the yield strength of the alloy material according to the result of the sum or weighted sum.

[0023] In one embodiment, determining the average particle diameter corresponding to each of the various precipitates in the alloy material and the volume fraction corresponding to each of the various precipitates in the alloy material specifically includes:

[0024] Obtain the electron microscope image of the alloy material;

[0025] By analyzing the image content corresponding to various precipitation phases in the electron microscope image, the average particle diameter corresponding to each precipitation phase in the alloy material and the volume fraction corresponding to each precipitation phase in the alloy material are determined.

[0026] In one embodiment, the alloy material specifically includes: aluminum alloy material, magnesium alloy material or titanium alloy material. In one embodiment, the method further includes:

[0027] The second aspect of the embodiments of the present application provides a device for determining the yield strength of an alloy material, including:

[0028] A parameter determination unit, configured to determine the average particle diameter corresponding to each precipitation phase in the alloy material and the volume fraction corresponding to each precipitation phase in the alloy material;

[0029] A yield strength increment determination unit, configured to, for each precipitation phase in the alloy material, determine the yield strength increment of the precipitation phase by using the average particle diameter and volume fraction corresponding to the precipitation phase;

[0030] An alloy yield strength determination unit, configured to determine the yield strength of the alloy material by using the yield strength increments of various precipitation phases.

[0031] The third aspect of the embodiments of the present application provides an electronic device, including:

[0032] A memory, used to store a computer program;

[0033] A processor, configured to execute the method according to any one of the method embodiments of the present application.

[0034] The fourth aspect of the embodiments of the present application provides a storage medium, including: a program, which, when running on an electronic device, enables the electronic device to execute the method according to any one of the method embodiments of the present application.

[0035] By using the method for determining the yield strength of an alloy material provided by the embodiments of the present application, the method includes determining the average particle diameter corresponding to each precipitation phase in the alloy material and the volume fraction corresponding to each precipitation phase in the alloy material, and then, for each precipitation phase in the alloy material, determining the yield strength increment of the precipitation phase by using the average particle diameter and volume fraction corresponding to the precipitation phase, and then determining the yield strength of the alloy material by using the yield strength increments of various precipitation phases. Compared with the prior art that determines the yield strength of an alloy material by means of a yield strength test, the efficiency can be improved. Description of the Drawings

[0036] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0037] Figure 1 Specific structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0038] Figure 2 Specific flowchart of a method for determining the yield strength of an alloy material provided in an embodiment of the present application;

[0039] Figure 3 TEM of 7055 aluminum alloy provided in an embodiment of the present application;

[0040] Figure 4 TEM of 7E55 aluminum alloy provided in an embodiment of the present application;

[0041] Figure 5 Specific structural schematic diagram of a device for determining the yield strength of an alloy material provided in an embodiment of the present application. Detailed implementation manners

[0042] The following will describe the technical solutions in the embodiments of the present application in combination with the drawings in the embodiments of the present application. In the description of the present application, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance or sequence.

[0043] As mentioned above, currently, the yield strength of an alloy material is mainly determined by means of yield strength testing. For example, the alloy material can be subjected to a series of tests such as stretching and twisting to measure the yield strength of the alloy material, but this method has low efficiency.

[0044] Based on this, the embodiments of the present application provide a method, a device, an electronic device, and a storage medium for determining the yield strength of an alloy material, which can be used to determine the yield strength of the alloy material and solve the problem of low efficiency in determining the yield strength of the alloy material in the prior art.

[0045] As Figure 1 shown, it is a specific structural schematic diagram of the electronic device 1 provided in the embodiments of the present application. The electronic device 1 includes: at least one processor 11 and a memory 12, Figure 1Take a processor as an example. The processor 11 and the memory 12 can be connected through a bus 10. The memory 12 stores instructions executable by the processor 11. The instructions are executed by the processor 11 so that the electronic device 1 can execute all or part of the processes of the methods in the following embodiments.

[0046] In practical applications, the electronic device 1 can be a mobile phone, a tablet computer, a laptop computer, a desktop computer, or a large server or server cluster composed of them, etc.

[0047] Such as Figure 2 shown, it is a specific process schematic diagram of a method for determining the yield strength of an alloy material provided by an embodiment of the present application. Part or all of the steps of this method can be executed by Figure 1 the electronic device 1 shown. This method includes the following steps:

[0048] Step S21: Determine the average particle diameter corresponding to each precipitation phase in the alloy material, and the volume fraction corresponding to each precipitation phase in the alloy material.

[0049] Among them, the alloy material can specifically include: aluminum alloy material, magnesium alloy material, titanium alloy material or other alloy materials. In the alloy material, it usually includes a base material and added metal materials. For example, the aluminum alloy material has aluminum as the base material, and the added metal materials can include metals such as magnesium and titanium.

[0050] There can be one or more precipitation phases in the alloy material. For example, an aluminum alloy material with a specification of 7055 (referred to as 7055 aluminum alloy), its precipitation phases include GP zones, η` phases, η phases and Al3Zr phases; an aluminum alloy material with a specification of 7E55 (referred to as 7E55 aluminum alloy), its precipitation phases include GP zones, η` phases, η phases and Al3(Zr,Er) phases, etc.

[0051] In this step S21, for the alloy material, the average particle diameter corresponding to each precipitation phase in the alloy material can be determined, and the volume fraction corresponding to each precipitation phase in the alloy material can be determined. There are various specific ways. For example, in Method 1, the average particle diameter corresponding to each precipitation phase in the alloy material and the volume fraction corresponding to each precipitation phase in the alloy material can be obtained from a database.

[0052] Among them, the database prestores the average particle diameter corresponding to each precipitation phase in each of a variety of alloy materials, as well as the volume fraction corresponding to each precipitation phase in each of the alloy materials. For example, for a variety of alloy materials, the average particle diameter corresponding to each precipitation phase in each alloy material and the volume fraction corresponding to each precipitation phase in each alloy material can be measured in advance, and then the measured data can be stored in the database. In this way, when needed, it can be queried and obtained from the database, thereby improving efficiency.

[0053] The second method can be to determine the average particle diameter corresponding to each precipitation phase in the alloy material and the volume fraction corresponding to each precipitation phase in the alloy material through the electron microscope image of the alloy material. Specifically, the electron microscope image of the alloy material can be obtained first. Among them, the electron microscope image can be a transmission electron microscope image (TEM). For example, the sample of the alloy material can be scanned through a transmission electron microscope to obtain the TEM of the alloy material; of course, the electron microscope image of the alloy material can also be obtained from an image library.

[0054] After obtaining the electron microscope image of the alloy material, the image content corresponding to each precipitation phase in the electron microscope image can be further analyzed, so as to determine the average particle diameter corresponding to each precipitation phase in the alloy material and the volume fraction corresponding to each precipitation phase in the alloy material through this analysis.

[0055] For example, the average particle diameter of the particles of a certain precipitation phase can be determined by measuring the image content of the precipitation phase in the electron microscope image (that is, the average particle diameter); in addition, in order to further improve the accuracy of the measured average particle diameter, the electron microscope image can be divided into multiple regions, and then the average particle diameter of the particles of the precipitation phase in each region can be measured respectively, and then the average value of the average particle diameter of the particles of the precipitation phase in each region can be calculated to obtain the average particle diameter corresponding to the precipitation phase.

[0056] By analyzing the image content corresponding to each precipitation phase in the electron microscope image, the volume fraction corresponding to each precipitation phase in the alloy material can also be determined. Taking TEM as an example, since TEM is generated by transmitting rays through the alloy material, TEM reflects the three-dimensional shape of the precipitation phase particles. Therefore, through data such as the three-dimensional shape and the diameter of the particles, its volume can be determined, and then the volume fraction of the precipitation phase in the alloy material can be calculated; of course, if the electron microscope image is SEM (scanning electron microscope image), the volume of the precipitation phase can be estimated through data such as the diameter of the precipitation phase particles, and then the volume fraction of the precipitation phase in the alloy material can be calculated.

[0057] In the second method, after determining the average particle diameter corresponding to each precipitation phase in the alloy material and the volume fraction corresponding to each precipitation phase in the alloy material through the electron microscope image of the alloy material, the data can also be stored in the database in the first method, so that it can be retrieved from the database when needed again to improve efficiency.

[0058] Step S22: For each precipitation phase in the alloy material, determine the yield strength increment of the precipitation phase by using the average diameter and volume fraction corresponding to the precipitation phase.

[0059] In an alloy material, the precipitation phase has a great influence on the yield strength of the alloy material. Therefore, when determining the yield strength of the alloy material, for each precipitation phase in the alloy material, the yield strength increment of the precipitation phase can be determined. Specifically, the yield strength increment of the precipitation phase is determined by using the average diameter and volume fraction corresponding to the precipitation phase.

[0060] It should be further noted that the precipitation phase in the alloy material can increase the yield strength through two different mechanisms, namely the Orowan mechanism and the cutting mechanism, and the methods for calculating the yield strength increment of the two mechanisms are different. In particular, for a certain precipitation phase, it may mainly increase the yield strength through the Orowan mechanism, while the influence of the cutting mechanism is relatively small, or it may mainly increase the yield strength through the cutting mechanism, while the influence of the Orowan mechanism is relatively small. Correspondingly, when determining the yield strength increment of the precipitation phase by using the average diameter and volume fraction corresponding to the precipitation phase, it can be first determined whether the precipitation phase mainly increases the yield strength through the Orowan mechanism or the cutting mechanism, and then the calculation method of the mechanism is used to calculate the yield strength increment.

[0061] Therefore, in an embodiment, step S22 may specifically include: for each precipitation phase in the alloy material, determine the first yield strength increment of the precipitation phase through the Orowan mechanism and the second yield strength increment of the precipitation phase through the cutting mechanism by using the average diameter and volume fraction corresponding to the precipitation phase, and then compare the magnitudes of the first yield strength increment and the second yield strength increment. In the case where the first yield strength increment is greater than or equal to the second yield strength increment, it indicates that the precipitation phase mainly increases the yield strength through the cutting mechanism, and the second yield strength increment can be determined as the yield strength increment of the precipitation phase; or, in the case where the first yield strength increment is less than the second yield strength increment, it indicates that the precipitation phase mainly increases the yield strength through the Orowan mechanism, and the first yield strength increment can be determined as the yield strength increment of the precipitation phase.

[0062] In practical applications, the first yield strength increment of the precipitation phase through the Orowan mechanism can be calculated by the following formulas (1) and (2):

[0063]

[0064]

[0065] wherein, Δσ Orowan is the calculated first yield strength increment; is the average radius of the circular cross-section of the spherical precipitates on the random plane; r is the average diameter of the precipitates; j is a preset constant, such as or other values; λ p is the distance between the intragranular precipitates (Mean edge-to-edge interprecipitate spacing); υ is the Poisson's ratio of the matrix, usually 0.34; b is the Burgers vector, usually 0.284 nm; M is the Taylor factor, usually 3.06; G is the shear modulus, usually 26.9 GPa. The meanings of other parameters are the same as those in other formulas.

[0066] Therefore, through the above formulas (1) and (2), the first yield strength increment Δσ of the precipitates through the bypass mechanism can be calculated Orowan .

[0067] In addition, for λ in the above formula (1), p it can be calculated by the following formula (3):

[0068]

[0069] In this formula 3, r is the average diameter of the precipitates; f is the volume fraction of the precipitates in the alloy material. The meanings of other parameters are the same as those in other formulas.

[0070] In practical applications, the second yield strength increment of the precipitates through the cutting mechanism can also be calculated by the following formulas (4), (5) and (6):

[0071] Δσ = Δσ cs + Δσ ms Formula (4)

[0072]

[0073]

[0074] wherein, Δσ is the calculated second yield strength increment; Δσ cs specifically, it is the yield strength increment caused by coherent strengthening between the particles of the precipitates and the alloy material substrate (referred to as the coherent strengthening increment); Δσ msis the increment of yield strength caused by modulus mismatch strengthening between the particles of the precipitation phase and the alloy material substrate (referred to as the modulus mismatch strengthening increment); ε c is the lattice mismatch parameter, usually 2.6; ΔG is the shear modulus mismatch between the precipitation phase and the substrate (i.e., G - G p ), usually 42.5 GPa; m is the second preset constant, usually 0.85. The meanings of other parameters are the same as those in other formulas.

[0075] Therefore, Δσ cs and Δσ ms can be calculated respectively by the above formulas (5) and (6), and then the sum of Δσ cs and Δσ ms is calculated to obtain the second yield strength increment Δσ.

[0076] It should be further noted that the second yield strength increment of the precipitation phase through the cutting mechanism can also be calculated by the following formula (7):

[0077] Δσ = Δσ cs + Δσ ms + Δσ od Formula (7)

[0078] wherein, Δσ cs and Δσ ms can be calculated respectively by the above formulas (5) and (6), and Δσ od is the increment of yield strength caused by order strengthening between the particles of the precipitation phase and the alloy material substrate (referred to as the order strengthening increment).

[0079] This Δσ od can be calculated by the following formula (8):

[0080]

[0081] wherein, r apb is the antiphase boundary free energy of the precipitation phase.

[0082] Using the above formulas (4) and (7), the second yield strength increment Δσ of the precipitation phase through the cutting mechanism can be calculated. The difference between the two is that Δσ od is added in formula (7). In practical applications, since the value of Δσ od is relatively small compared to Δσ cs and Δσ ms , in some cases, Δσ od can be omitted, and thus formula (4) can be used to calculate Δσ; of course, in the case of precise calculation, formula (7) can be used to calculate Δσ. The meanings of other parameters are the same as those in other formulas.

[0083] It should be further noted that for the η` phase in the aluminum alloy material, since the η` phase has a hexagonal structure. The orientation relationship between the η` phase and the substrate of the aluminum alloy material is (001)η` / / {111}Al and

[110] η` / / <112>Al. The mutual relationship between the lattice parameters of the η` phase and the substrate is d100(η`) = 3d220(Al) and d001(η`) = 6d111(Al), and the η` phase and the Al fcc lattice form a semi-coherent relationship. Therefore, the ε between the semi-coherent η` precipitation phase (hexagonal structure) and the substrate (cubic structure) can also be calculated through the following formulas (9) to (13). c :

[0084]

[0085]

[0086]

[0087]

[0088]

[0089] Among them, B c is the shear modulus of the η` phase, which can usually be 64.5 GPa; a m is the lattice parameter of the substrate, a m = 0.405 nm, a p and c p are the lattice parameters of the η` precipitation phase, a p = 0.496 nm, c p = 1.402 nm. The meanings of other parameters are the same as those in other formulas.

[0090] In the above step S22, the second yield strength increment Δσ of the precipitation phase through the cutting mechanism can be calculated by the above formula (4) or formula (7), and then the magnitude of this Δσ and Δσ Orowan is further compared. In the case where Δσ Orowan is greater than or equal to Δσ, it indicates that the precipitation phase mainly improves the yield strength through the cutting mechanism, and this Δσ can be determined as the yield strength increment of the precipitation phase; or, in the case where Δσ Orowan is less than Δσ, it indicates that the precipitation phase mainly improves the yield strength through the bypass mechanism, and Δσ Orowan can be determined as the yield strength increment of the precipitation phase.

[0091] Step S23: Determine the yield strength of the alloy material by using the yield strength increments of various precipitation phases.

[0092] After determining the yield strength increments of various precipitation phases in step S23, the yield strength of the alloy material can be determined using the yield strength increments of various precipitation phases. For example, the yield strength increments of various precipitation phases can be summed up, and then based on the summation result, the yield strength of the alloy material can be determined. For example, the summation result can be used as the yield strength of the alloy material.

[0093] In addition, considering the differences in the content and distribution of various precipitation phases in the alloy material, the yield strength increments of various precipitation phases can also be weighted and summed up, and then based on the weighted summation result, the yield strength of the alloy material can be determined. For example, the weighted summation result can be used as the yield strength of the alloy material. Among them, during the weighted summation process, the weights can be determined according to the content and distribution. For example, for precipitation phases with higher content and more dispersed distribution, their corresponding weights can be relatively larger, and vice versa, the weights can be relatively smaller.

[0094] By using the method for determining the yield strength of the alloy material provided in the embodiment of the present application, the method includes determining the average particle diameter corresponding to each precipitation phase in the alloy material, and the volume fraction corresponding to each precipitation phase in the alloy material. Then, for each precipitation phase in the alloy material, using the average particle diameter and volume fraction corresponding to the precipitation phase, the yield strength increment of the precipitation phase is determined. Then, using the yield strength increments of various precipitation phases, the yield strength of the alloy material is determined. Compared with the prior art that determines the yield strength of the alloy material by means of yield strength testing, the efficiency can be improved.

[0095] For the sake of easy understanding, here, taking 7055 aluminum alloy and 7E55 aluminum alloy as examples, this method will be further described. As Figure 3 shown is the TEM of 7055 aluminum alloy, as Figure 4 shown is the TEM of 7E55 aluminum alloy.

[0096] First, the TEM of 7055 aluminum alloy and the TEM of 7E55 aluminum alloy can be collected. Among them, as Figure 3 shown is the TEM of 7055 aluminum alloy, as Figure 4 shown is the TEM of 7E55 aluminum alloy.

[0097] Then, the TEM of 7055 aluminum alloy can be further analyzed to determine the average particle diameter corresponding to various precipitation phases (GP zone, η` phase, η phase, and Al3Zr phase) in the 7055 aluminum alloy, as well as the volume fraction corresponding to each precipitation phase. For 7E55 aluminum alloy, the TEM of 7E55 aluminum alloy can also be analyzed to determine the average particle diameter corresponding to various precipitation phases (GP zone, η` phase, η phase, and Al3(Zr,Er)) in the 7E55 aluminum alloy, as well as the volume fraction corresponding to each precipitation phase. Among them, as shown in Table 1, the average particle diameter and volume fraction corresponding to various precipitation phases in the two aluminum alloy materials are presented.

[0098] Table 1

[0099]

[0100] Combined with the data in Table 1 and the formula in the above step S22, the Δσ of each precipitation phase in 7055 aluminum alloy is calculated Orowan ; the Δσ of each precipitation phase in 7E55 aluminum alloy can also be calculated Orowan , and the specific calculated data is shown in Table 2. Among them, the unit of σ Orowan in Table 2 is Mpa.

[0101] Table 2

[0102]

[0103] Combined with the data in Table 1 and the formula in the above step S22, the Δσ, Δσ cs , Δσ ms and Δσ od of each precipitation phase in 7055 aluminum alloy are calculated; the Δσ, Δσ cs , Δσ ms and Δσ od of each precipitation phase in 7E55 aluminum alloy can also be calculated, and the specific calculated data is shown in Table 3. Among them, the units of Δσ, Δσ cs , Δσ ms and Δσ od in Table 3 are all Mpa

[0104] Table 3

[0105] aluminum alloy material <![CDATA[Δσ cs > <![CDATA[Δσ ms > <![CDATA[Δσ od > Δσ 7055 aluminum alloy 49 ＜1 452 502 7E55 aluminum alloy 50 ＜1 462 513

[0106] Since the Δσ Orowan of each precipitation phase in 7055 aluminum alloy is less than its Δσ, each precipitation phase mainly improves the yield strength through the bypass mechanism, and the Δσ Orowan of each precipitation phase can be determined as the yield strength increment of the precipitation phase, and then the Δσ of each precipitation phase is calculatedOrowan The sum is 283 Mpa, which is used as the yield strength of the 7055 aluminum alloy.

[0107] Since the Δσ of each precipitation phase in the 7E55 aluminum alloy Orowan is also less than its Δσ, each precipitation phase also mainly improves the yield strength through the bypass mechanism. The Δσ of each precipitation phase Orowan can be determined as the yield strength increment of the precipitation phase, and then the sum of the Δσ of each precipitation phase Orowan is 306 Mpa, which is used as the yield strength of the 7E55 aluminum alloy.

[0108] Based on the same inventive concept as the method for determining the yield strength of the alloy material provided in the embodiments of the present application, the embodiments of the present application also provide a device for determining the yield strength of the alloy material. For the embodiments of this device, if there is any unclear point, the corresponding content of the method embodiments can be referred to. As Figure 5 shown in the specific structural schematic diagram of the device 50, the device 50 includes: a parameter determination unit 501, a yield strength increment determination unit 502, and an alloy yield strength determination unit 503, where:

[0109] The parameter determination unit 501 is used to determine the average particle diameter corresponding to each precipitation phase in the alloy material, and the volume fraction corresponding to each precipitation phase in the alloy material;

[0110] The yield strength increment determination unit 502 is used to determine the yield strength increment of the precipitation phase for each precipitation phase in the alloy material by using the average particle diameter and volume fraction corresponding to the precipitation phase;

[0111] The alloy yield strength determination unit 503 is used to determine the yield strength of the alloy material by using the yield strength increments of various precipitation phases.

[0112] By using the device 50 provided in the embodiments of the present application, since the device 50 has the same inventive concept as the method provided in the embodiments of the present application, on the premise that the method can solve the technical problem, the device 50 can also solve the technical problem, and this will not be elaborated here.

[0113] In addition, in practical applications, the technical effects obtained by combining the device 50 with specific software and hardware devices are also within the protection scope of the present application. For example, the device 50 is implemented through an application program, and different units in the device 50 are arranged in different modules of the application program, so as to determine the yield strength of the alloy material by running the application program; or, the device 50 is applied to electronic devices such as mobile phones and tablet computers to improve the commercial value of the electronic devices, etc.

[0114] An embodiment of the present invention also provides a storage medium, including: a program, when it runs on an electronic device, enabling the electronic device to execute all or part of the processes of the methods in the above embodiments. Among them, the storage medium can be a disk, an optical disc, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD), etc. The storage medium can also include a combination of the above types of memories.

[0115] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A method for determining the yield strength of an alloy material, characterized in that, Including: Determine the average particle diameter corresponding to each precipitation phase in the alloy material, and the volume fraction corresponding to each precipitation phase in the alloy material; For each precipitation phase in the alloy material, use the average particle diameter and volume fraction corresponding to the precipitation phase to determine the yield strength increment of the precipitation phase; Use the yield strength increments of various precipitation phases to determine the yield strength of the alloy material; Among them, using the average particle diameter and volume fraction corresponding to the precipitation phase to determine the yield strength increment of the precipitation phase specifically includes: Use the average particle diameter and volume fraction corresponding to the precipitation phase to determine the first yield strength increment of the precipitation phase through the bypass mechanism and the second yield strength increment through the cutting mechanism; In the case where the first yield strength increment is greater than or equal to the second yield strength increment, determine the second yield strength increment as the yield strength increment of the precipitation phase; or, In the case where the first yield strength increment is less than the second yield strength increment, determine the first yield strength increment as the yield strength increment of the precipitation phase; Among them, the first yield strength increment of the precipitation phase through the bypass mechanism is calculated by the following formula: ； r； Among them, Specifically, it is the calculated first yield strength increment; Specifically, it is the average particle radius of the circular cross-section of spherical precipitates on a random plane; r is specifically the average particle diameter of the precipitates; is a preset constant; Specifically, it is the distance between intragranular precipitates; Specifically, it is the Poisson's ratio of the matrix; Specifically, it is the Burgers vector; Specifically, it is the Taylor factor; Specifically, it is the shear modulus; Among them, the second yield strength increment of the precipitation phase through the cutting mechanism is calculated by the following formula: = + ； Among them, ; ； Specifically, it is the calculated second yield strength increment; Specifically, it is the coherent strengthening increment between the particles of the precipitation phase and the alloy material substrate; Specifically, it is the mismatch modulus between the particles of the precipitation phase and the alloy material substrate; Specifically, it is the lattice mismatch parameter; ΔG is specifically the shear modulus mismatch between the precipitation phase and the substrate; m is specifically the second preset constant; Specifically, it is the Burgers vector; Specifically, it is the Taylor factor; Specifically, it is the shear modulus; r is specifically the average diameter of the particles of the precipitation phase; Specifically, it is the volume fraction of the precipitation phase in the alloy material.

2. The method according to claim 1, characterized in that, Using the yield strength increments of various precipitation phases to determine the yield strength of the alloy material specifically includes: Sum or weighted sum the yield strength increments of various precipitation phases; Determine the yield strength of the alloy material according to the result of the sum or weighted sum.

3. The method according to claim 1, characterized in that, Determine the average particle diameter corresponding to each precipitation phase in the alloy material, and the volume fraction corresponding to each precipitation phase in the alloy material, specifically including: Obtain the electron microscope image of the alloy material; By analyzing the image content corresponding to each precipitation phase in the electron microscope image, determine the average particle diameter corresponding to each precipitation phase in the alloy material, and the volume fraction corresponding to each precipitation phase in the alloy material.

4. The method as claimed in claim 1, wherein The alloy material specifically includes: aluminum alloy material, magnesium alloy material or titanium alloy material.

5. An apparatus for determining the yield strength of an alloy material, characterized in that, Including: A parameter determination unit for determining the average particle diameter corresponding to each precipitation phase in the alloy material, and the volume fraction corresponding to each precipitation phase in the alloy material; A yield strength increment determination unit for, for each precipitation phase in the alloy material, using the average particle diameter and volume fraction corresponding to the precipitation phase to determine the yield strength increment of the precipitation phase; Among them, using the average particle diameter and volume fraction corresponding to the precipitation phase to determine the yield strength increment of the precipitation phase specifically includes: Using the average particle diameter and volume fraction corresponding to the precipitation phase to determine the first yield strength increment of the precipitation phase through the bypass mechanism and the second yield strength increment through the cutting mechanism; In the case where the first yield strength increment is greater than or equal to the second yield strength increment, determine the second yield strength increment as the yield strength increment of the precipitation phase; or, When the first yield strength increment is less than the second yield strength increment, the first yield strength increment is determined as the yield strength increment of the precipitation phase; Among them, the first yield strength increment of the precipitation phase through the bypass mechanism is calculated by the following formula: ； r； Among them, Specifically, it is the calculated first yield strength increment; Specifically, it is the average particle radius of the circular cross-section of the spherical precipitates on the random plane; r is specifically the average particle diameter of the precipitates; It is a preset constant; Specifically, it is the distance between the intragranular precipitates; Specifically, it is the Poisson's ratio of the matrix; Specifically, it is the Burgers vector; Specifically, it is the Taylor factor; Specifically, it is the shear modulus; , the second yield strength increment of the precipitated phase through the cutting mechanism is calculated by the following formula: = + ； Among them, ; ； Specifically, it is the calculated second yield strength increment; Specifically, it is the coherent strengthening increment between the particles of the precipitation phase and the alloy material substrate; Specifically, it is the mismatch modulus between the particles of the precipitation phase and the alloy material substrate; Specifically, it is the lattice mismatch parameter; ΔG is specifically the shear modulus mismatch between the precipitation phase and the substrate; m is specifically the second preset constant; Specifically, it is the Burgers vector; Specifically, it is the Taylor factor; Specifically, it is the shear modulus; r is specifically the average diameter of the particles of the precipitation phase; Specifically, it is the volume fraction of the precipitation phase in the alloy material; An alloy yield strength determination unit is used to determine the yield strength of the alloy material by using the yield strength increments of various precipitation phases.

6. An electronic device, characterized in that, It includes: A memory for storing computer programs; A processor for executing the method according to any one of claims 1 to 4.

7. A storage medium, characterized in that, It includes: a program that, when running on an electronic device, enables the electronic device to execute the method according to any one of claims 1 to 4.

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