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Plate texture Schmidt factor calculation method and device and storage medium

A calculation method and texture technology, applied in the calculation method of Schmidt factor of plate texture under different stress directions, equipment and storage media, can solve the problem of less consideration of the influence of plate texture, and reduce the calculation work Quantity, improving calculation efficiency, and high accuracy of results

Pending Publication Date: 2022-03-25
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common calculation of Schmidt factor is calculated on the basis of known external force and slip system. During the calculation, the influence of plate texture on Schmidt factor is rarely considered, even if the effect of texture on the applied force is considered. Influenced by the Mitt factor, only the Schmidt factor is calculated when the texture and the direction of the external force are consistent.

Method used

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  • Plate texture Schmidt factor calculation method and device and storage medium
  • Plate texture Schmidt factor calculation method and device and storage medium
  • Plate texture Schmidt factor calculation method and device and storage medium

Examples

Experimental program
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Embodiment 1

[0025] This embodiment discloses a method for calculating the Schmidt factor of a plate texture under different stress directions, and the method includes the following steps:

[0026] Step 1. Determine the plate texture type inside the face-centered cubic aluminum alloy of the rolled plate by EBSD test, expressed as {hkl} by Miller index , where {hkl} represents the rolling surface, Represents the rolling direction; let the direction vector of the external force be (x, y, z), the angle between the external force and the rolling direction is θ, and θ satisfies the condition: 0≤θ≤90°, and the direction of the external force is determined by the equation The values ​​of x, y, z of the vector, the equation system is:

[0027] hx+ky+lz=0

[0028]

[0029] x 2 +y 2 +z 2 = u 2 +v 2 +w 2

[0030] Specifically, take the {001} texture of the face-centered cubic aluminum alloy as an example to find the Schmidt factor under the 30° force direction. Through ...

Embodiment 2

[0111] This embodiment discloses a computing device, including: one or more processors; memory; and one or more programs, wherein one or more programs are stored in the memory and configured to be executed by the one or more processors Execution, one or more programs include instructions for calculating the Schmidt factor of the plate texture in different directions of force, the method includes steps:

[0112] Step 1. Determine the plate texture type inside the rolled plate by EBSD test, expressed as {hkl} by Miller index , where {hkl} represents the rolling surface, Represents the rolling direction; let the direction vector of the external force be (x, y, z), the angle between the external force and the rolling direction is θ, and θ satisfies the condition: 0≤θ≤90°, and the direction of the external force is determined by the equation The values ​​of x, y, z of the vector, the equation system is:

[0113] hx+ky+lz=0

[0114]

[0115] x 2 +y 2 +z 2 = u ...

Embodiment 3

[0121] A computer-readable storage medium storing one or more programs, wherein the one or more programs include instructions, the instructions are adapted to be loaded from the memory and execute the method for calculating the Schmidt factor of the plate texture under different force directions, The method includes the steps of:

[0122] Step 1. Determine the plate texture type inside the rolled plate by EBSD test, expressed as {hkl} by Miller index , where {hkl} represents the rolling surface, Represents the rolling direction; let the direction vector of the external force be (x, y, z), the angle between the external force and the rolling direction is θ, and θ satisfies the condition: 0≤θ≤90°, and the direction of the external force is determined by the equation The values ​​of x, y, z of the vector, the equation system is:

[0123] hx+ky+lz=0

[0124]

[0125] x 2 +y 2 +z 2 = u 2 +v 2 +w 2

[0126] Step 2. According to the known slip system {...

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Abstract

The invention provides a method for calculating Schmidt factors of a plate texture in different stress directions, which comprises the following steps of: firstly, determining the type of the plate texture according to an electron back scattering diffraction (EBSD) experiment, and secondly, determining a rolling surface and a rolling direction of the texture according to the type of the plate texture; thirdly, the direction vector of the external force is determined according to the angle between the external force and the rolling direction; and finally, calculating cosine values between the external force and different slip systems (slip planes and slip directions) of the plate texture, and calculating Schmidt factors of the different slip systems of the plate texture according to the cosine values of the external force and the different slip systems. By using the method, the size of the Schmidt factor under different textures and different external force directions can be quickly calculated, the calculation workload is reduced, the calculation efficiency is improved, and meanwhile, very high calculation precision can be obtained.

Description

technical field [0001] The invention belongs to the technical field of material processing deformation and mechanics, and in particular relates to a calculation method, equipment and storage medium of a Schmidt factor of a plate texture under different stress directions. Background technique [0002] Texture will affect the elastic modulus, strength, plasticity, toughness, magnetism, electrical conductivity and other properties of materials. Plate texture is a ubiquitous texture type in rolled plates, mainly including S{123}<643> texture, copper {112}<111> texture, brass {110}<112> texture, etc. The existence of texture has an important influence on the plastic deformation ability (such as yield strength) of materials. The plastic deformation of materials is closely related to the Schmidt factor that characterizes the ease of slippage of materials. The larger the Schmidt factor, the easier it is for the material to slip. Slip, macroscopically manifests as ...

Claims

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Application Information

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IPC IPC(8): G06F17/12
CPCG06F17/12
Inventor 李恒张力文边天军吴嫦慧杨许冬
Owner NORTHWESTERN POLYTECHNICAL UNIV
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