金属热处理 ›› 2021, Vol. 46 ›› Issue (1): 225-229.DOI: 10.13251/j.issn.0254-6051.2021.01.041

• 测试与分析 • 上一篇    下一篇

基于钢中残留奥氏体定量的EBSD扫描面积参数优化

崔桂彬, 鞠新华, 孟杨, 尹立新   

  1. 首钢集团有限公司技术研究院,北京 100043
  • 收稿日期:2020-06-20 出版日期:2021-01-25 发布日期:2021-01-26
  • 作者简介:崔桂彬(1983—),男,高级工程师,硕士,主要研究方向为钢铁材料微观表征技术研究,E-mail:107634667@qq.com

EBSD scanning area parameter optimization based on quantification of retained austenite in steel

Cui Guibin, Ju Xinhua, Meng Yang, Yin Lixin   

  1. Shougang Group Company Limited Research Institute of Technology,Beijing 100043,China
  • Received:2020-06-20 Online:2021-01-25 Published:2021-01-26

摘要: 为了优化基于残奥定量的EBSD扫描面积参数,详细研究并讨论了置信区间和A类标准不确定度与扫描面积参数的关系。研究表明,综合考虑与扫描面积参数优化有关的扫描视场数(n≥6)、置信区间、A类标准不确定度、分析时间等主要影响因素可知,扫描总面积须达到65 000 μm2

关键词: 残留奥氏体, EBSD, 扫描面积, 置信区间, A类标准不确定度

Abstract: In order to optimize the EBSD scan area parameters based on the quantification of retained austenite,the relationship between the confidence interval and type A standard uncertainty and the scan area parameters were studied and discussed in detail.The research shows that according to comprehensively considering the main influencing factors such as the number of scanning fields (n≥6),confidence interval,type A standard uncertainty,and analysis time related to the optimization of scanning area parameters,the total scanning area must reach 65 000 μm2.

Key words: retained austenite, EBSD, scanning area, confidence interval, type A standard uncertainty

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