Method for measuring inverse pole figure by inclining and rotating test sample

A technology of inverse pole figure and axis of rotation, applied in measuring devices, material analysis using wave/particle radiation, instruments, etc., can solve the problems of deviation of material properties, inverse pole figure not suitable for measuring textured samples, etc. , to achieve a good corresponding effect

Inactive Publication Date: 2014-09-24
武汉钢铁有限公司
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In summary, there is a deviation between the measured results of the existing method and the prop

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for measuring inverse pole figure by inclining and rotating test sample
  • Method for measuring inverse pole figure by inclining and rotating test sample
  • Method for measuring inverse pole figure by inclining and rotating test sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to better explain the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but they do not limit the present invention.

[0025] The method of measuring the inverse pole figure by tilting and rotating the sample, such as Figure 4 shown, including the following steps:

[0026] 1) Determination of the position of each diffraction peak: adopt a symmetrical diffraction method to obtain a diffraction pattern of a sample and a standard sample, to determine the positions of several {hkl} diffraction peaks, that is, the 2θ position, and the background on the left and right sides of the diffraction peak Location;

[0027] 2) Put the sample 3 on the 1θ axis of the X-ray diffractometer measuring device, place the detector 5 on the 2θ axis, first let the 1θ axis and the 2θ axis be at the initial position of 0°;

[0028] 3) Make the 1θ axis and the 2θ axis according to t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for measuring an inverse pole figure by inclining and rotating a test sample. The method comprises the following steps of determining peak positions of diffraction peaks of the test sample and a standard sample and back bottom positions of the left side and the right side of the peaks; arranging the test sample and a detector at initial positions; obtaining the intensity and the back bottom intensity of all the diffraction peaks of the test sample under different inclination angles during rotation, calculating the net intensity of the diffraction peaks to obtain the net intensity of the diffraction peaks of the standard sample, calculating a ratio of the net intensity of the diffraction peaks of the test sample to the net intensity of the diffraction peaks of the standard sample under the different inclination angles, and calculating an average value of all the ratios to obtain an extreme density value of each diffraction peak; and marking the extreme density values of all the diffraction peaks on the inverse pole figure to finish a measurement process. During the measurement of the inverse pole figure, the test sample can be inclined and is rotated around 360 degrees by taking a normal of the test sample as a rotating shaft, so that all orientation crystal particles make contributions to the extreme density of the inverse pole figure. A measurement result and the material performance have a good corresponding relationship, and the scientificity is high.

Description

technical field [0001] The invention relates to a method for measuring an inverse pole figure, in particular to a method for measuring an inverse pole figure by tilting and rotating a sample. Background technique [0002] The orientation distribution structure in which the polycrystalline orientation distribution state deviates significantly from random distribution is called texture, and texture has a direct impact on the properties of steel materials (such as silicon steel sheet, automobile sheet, etc.). Therefore, in order to develop new materials with better performance, how to accurately analyze and measure the texture of materials is of great significance. There are generally pole figure methods, inverse pole figure methods, and orientation distribution function methods for measuring and analyzing the texture of materials. [0003] The traditional method of measuring inverse pole figures by wide-angle X-ray diffractometer is generally to use short-wavelength monochrom...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N23/207
Inventor 周顺兵王志奋陈士华姚中海
Owner 武汉钢铁有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products