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Titanium alloy metallographic analysis method based on Matlab

A metallographic analysis and titanium alloy technology, which is applied in the fields of material analysis, image analysis, and material analysis through optical means, can solve problems such as low efficiency and inaccurate titanium alloy metallographic analysis, so as to improve accuracy and improve work efficiency effect

Inactive Publication Date: 2021-06-29
宝武特种冶金有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] For the above-mentioned defects existing in the prior art, the purpose of the present invention is to provide a kind of titanium alloy metallographic analysis method based on Matlab, solve the problem that titanium alloy metallographic analysis is inaccurate and inefficient

Method used

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  • Titanium alloy metallographic analysis method based on Matlab
  • Titanium alloy metallographic analysis method based on Matlab
  • Titanium alloy metallographic analysis method based on Matlab

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Metallographic analysis of 500 times TC11 isometric structure (corrosion agent is hydrofluoric acid and nitric acid) based on Matlab, including the following steps:

[0029] 1) The files in JPG format are scanned sequentially under the computer target path, and the full names of all JPG format files are read and saved;

[0030] 2) According to the metallographic photo whose file name is "960-1-500×.jpg", convert the metallographic photo into an m×n pixel matrix. During this process, the metallographic photo is converted into a grayscale original image, such as figure 1 As shown, according to the depth of the color, the matrix pixels are correspondingly distributed in the range of 0 to 225 integers, among which, pixel 255 represents pure white, and pixel 0 represents pure black;

[0031] 3) if figure 2 As shown, the pixel matrix is ​​cropped to remove the content representing the scale;

[0032] 4) Analyze the metallographic data of the matrix to obtain an M-shaped qu...

Embodiment 2

[0039] Metallographic analysis is carried out based on Matlab to 500 times of TC17 basket tissue, and concrete steps are as follows: according to the step 1) to 7) in the concrete measure of embodiment 1, obtain the statistical data such as the morphology feature of basket tissue α phase, use characteristic The point method is used to find whether there are obvious grain boundary α and abnormal feathering α in the metallographic structure.

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Abstract

The invention discloses a titanium alloy metallographic analysis method based on Matlab, and is applied to the field of titanium alloy isothermal forging quality evaluation. The titanium alloy metallographic analysis method comprises the steps of: sequentially reading all the metallographic photos under the target path, cutting the scale part, carrying out binarization processing on the metallographic phase according to the number distribution diagram of the pixel values, further acquiring the morphological characteristics and statistical data of the titanium alloy metallographic structure, and evaluating the structure performance of the titanium alloy forge piece. The titanium alloy metallographic analysis method is efficient and accurate, and can quantitatively process the metallographic photos in batches and output visual data.

Description

technical field [0001] The invention relates to the field of isothermal forging quality evaluation of titanium alloys, in particular to a method for metallographic analysis of titanium alloys based on Matlab. Background technique [0002] Titanium alloy has the advantages of high temperature resistance, corrosion resistance and high strength, and is widely used in aerospace industry. With the rise of my country's aircraft manufacturing level, the demand for titanium alloy and related products is also increasing rapidly. The metallographic structure of titanium alloy The analysis puts forward the requirements of high efficiency and precision. [0003] Titanium consists of two isomorphic crystals: α titanium and β titanium. The structure of titanium alloy is generally composed of α phase and β phase. The quality of titanium alloy structure can be judged by analyzing the proportion, size, and shape of the precipitated phase. [0004] At present, there have been many studies on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84G06T7/00G06T7/62
CPCG01N21/84G06T7/0004G06T7/62G06T2207/10004G06T2207/30136G01N2021/8477
Inventor 孟庆通洪凌翔吴英彦许正芳丁晨
Owner 宝武特种冶金有限公司
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