EBSD分析粉冶铍材标定率的影响因素和解决办法  

EBSD of the factors affecting the calibration rate of pulverized beryllium materials and its solution

作　　者：黄旭刚 张健康 李美岁 HUANG Xugang;ZHANG Jiankang;LI Meisui(State Key Laboratory of Special Rare Metal Material,Northwest Rare Metal Materials Institute,Shizuishan 753000,China)

机构地区：[1]西北稀有金属材料研究院宁夏有限公司稀有金属特种材料国家重点实验室,宁夏石嘴山753000

出　　处：《粉末冶金工业》2022年第1期106-110,共5页Powder Metallurgy Industry

基　　金：宁夏回族自治区自然科学基金资助项目(2018AAC03225)。

摘　　要：铍材具有特殊的物理性能,主要应用在核、航空航天领域。EBSD(电子背散射衍射)作为新型的分析技术,在铍材的生产过程中,应用越来越广泛。稀有金属材料国家重点实验室在EBSD分析铍材的实际应用中,发现对铍的标定率低成为限制铍材EBSD分析的一个难点。本文通过优化制样参数,有效降低铍样表面的残余应力;通过调整EBSD增益参数,减少背底和噪声信号的影响;通过调整解析器设置参数,提高对被干扰的信息的识别,将铍材EBSD标定率平均提高了27%。Beryllium has special physical properties and is used in nuclear and aerospace applications.As a new analysis technique,EBSD(Electron backscatter diffraction) has been used more and more widely in beryllium production.The low calibration rate of beryllium was found by the State Key Laboratory of Rare Metal Materials in the practical application of EBSD analysis of beryllium.In this paper,the residual stress on the surface of beryllium sample can be effectively reduced by optimizing the sample preparation parameters,the influence of background and noise signal can be reduced by adjusting the gain parameters of EBSD,and the identification of the disturbed information can be improved by adjusting the parameters of the parser,the calibration rate of beryllium was increased by an average of 27% by EBSD.

关 键 词：材料检测与分析技术 铍材 电子背散射衍射 衍射花样 识别率 

分 类 号：TF125.24[冶金工程—粉末冶金]