Improvement in X-ray stress measurement using Debye--Scherrer ring by in-plane averaging
Improvement in X-ray stress measurement using Debye--Scherrer ring by in-plane averaging
复制标题
使用 Debye-Scherrer 环通过面内平均改进 X 射线应力测量
DOI：
10.1107/s160057671600128x
复制
发表时间：
2016
影响因子：
6.1
通讯作者：
Y. Fujimoto and T. Sasaki
中科院分区：
文献类型：
--
作者：
T. Miyazaki; Y. Fujimoto and T. Sasaki
报道了一种利用德拜-谢勒环改进X射线应力测量的技术。在以前的工作中，提出了一种基于傅里叶级数的cos-α方法的推广，该方法可以测量德拜-谢勒环的应力。当试件的晶粒度较大且德拜-谢勒环为颗粒状时，该技术和cos-α方法很难确定应力。为了解决这一问题，在测量粗晶样品时，使用了面内平均来改进CoSα方法。在这项研究中，傅里叶级数分析与面内平均相结合，解释了面内平均如何改善应力测量。通过对碳钢试件的应力测量，验证了该方法的有效性。
A technique to improve X-ray stress measurement using Debye–Scherrer rings is reported. In previous work, a Fourier-series-based generalization of the cosα method was proposed, which can measure the stress from a Debye–Scherrer ring. That technique and the cosα method have difficulties in determining the stress when the grain size of the specimen is relatively large and the Debye–Scherrer ring is grainy. To cope with this problem, in-plane averaging has been used to improve the cosα method when measuring coarse-grained specimens. In this study, Fourier series analysis is incorporated with in-plane averaging and it is explained how in-plane averaging improves the stress measurement. Furthermore, the validity of the new technique is demonstrated by measuring the stress of a carbon steel specimen.