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A Pole Figure Analysis Method of Crystal Texture

A technology of crystal texture and analysis method, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems that hinder the popularization and application of analysis technology, and it is difficult to master the pole figure trial method and analytical method, so as to achieve promotion and promotion , the effect of simplifying the analysis process

Inactive Publication Date: 2016-05-11
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult for X-ray diffraction analysts with undergraduate degrees in science and engineering, and even some teachers who are engaged in the teaching of modern analysis and testing techniques to master the trial and analysis methods of pole figures.
This has greatly hindered the widespread use of this analytical technique

Method used

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  • A Pole Figure Analysis Method of Crystal Texture
  • A Pole Figure Analysis Method of Crystal Texture
  • A Pole Figure Analysis Method of Crystal Texture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] An example of the angle between the crystal planes in the cubic crystal system, first calculate the angle between the crystal planes {211} and {220} in the cubic crystal system, and use the cosine law to calculate the process as follows:

[0015] because c o s θ = 2 × 2 + 2 × 1 + 0 × 1 ( 2 2 + 2 2 + 0 2 ) × ( 2 2 + 1 ...

Embodiment 2

[0028] Using the same method as in Example 1, the standard full pole figure and the measured partial pole figure of the shear texture are obtained as follows: figure 2 shown.

Embodiment 3

[0030] First use the same calculation method as in Example 1 to calculate the angle between the crystal planes, and then draw the standard pole figure and the measured pole figure of the (111) / / ND texture, as image 3 shown. The drawing process is detailed as follows: From Table 1, it can be seen that the angles between {111} and (111) crystal planes are 0° and 70.5°, and the distance between the center of the circle and the center of the circle on Wulf'net is 70.5° The circle constitutes the (111) standard pole figure of (111) / / ND texture. It can be seen from Table 1 that the angle between {111} and (200) crystal plane is 54.7°, and the circle centered on the center of the circle and 54.7° from the center of the circle on Wulf'net constitutes (111) / / ND Textured (200) standard pole figures. It can be seen from Table 1 that the included angles between {111} and (220) crystal planes are 35.3° and 90°, and two circles with the center of the circle as the center and distances...

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Abstract

The invention relates to a crystal texture pole figure analysis method, belonging to the crystal texture pole figure analysis technology. A certain crystal plane (HKL) which corresponds to any one texture{hkl} (uvw) is calculated by calculating the included angles theta1, theta 2, ... between the {hkl} and the (HKL) and the include angles phi1, phi2, ... between the {hkl} and the (HKL) according to the relationships of the included angels between crystal planes, a plurality of circles are drawn on a Wulff net by taking the centers of the circles as the centers and the include angles theta1, theta 2, ... as the radii, a plurality of equiangular curved lines which correspond to the include angles phi1, phi2, ... on the Wulff net are found by taking an upper pole and a lower pole as centers, the equiangular curved lines are intersected with the circles, wherein the points of intersection represent the texture{hkl} (uvw) pole figure (HKL), and the texture can be analyzed accurately by comparing the actually measured pole figure with the standard pole figure. Due to the adoption of the crystal texture pole figure analysis technology, the complex analysis of the texture pole figure can be simplified, and the requirements of the analyst can be greatly reduced. The application of the crystal texture pole figure analysis technology can be popularized.

Description

technical field [0001] The invention relates to a crystal texture pole figure analysis method, specifically relates to the drawing technology and application of cubic crystal and hexagonal crystal texture standard pole figure, and belongs to the technical field of crystal texture pole figure analysis. Background technique [0002] Texture is a common phenomenon in materials in the physical metallurgical process, such as casting texture, deformation texture, recrystallization texture, crystal growth texture and phase transformation texture, etc., which have an important impact on its properties. Some advanced metal materials such as deep-drawn steel plate, deep-drawn aluminum alloy sheet, oriented silicon steel, non-oriented silicon steel, capacitor aluminum book, etc. The texture of the material will result in anisotropy of the macroscopic properties. The research and development of anisotropy has become an important development direction in the field of materials. Experim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 陈亮维史庆南王剑华周芸易健宏
Owner KUNMING UNIV OF SCI & TECH