Stress measurements by multi-reflection grazing-incidence X-ray diffraction method (MGIXD) using different radiation wavelengths and different incident angles

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• 作者：Marianna Marciszko^a ; ^{marianna.marciszko@fis.agh.edu.pl" class="auth_mail" title="E-mail the corresponding author} ; Andrzej Baczmański^b ; ^{andrzej.baczmanski@fis.agh.edu.pl" class="auth_mail" title="E-mail the corresponding author} ; Chedly Braham^c ; ^{chedly.braham@paris.ensam.fr" class="auth_mail" title="E-mail the corresponding author} ; Mirosław Wró ; bel^d ; ^{mwrobel@agh.edu.pl" class="auth_mail" title="E-mail the corresponding author} ; Sebastian Wroński^b ; ^{sebastian.wronski@fis.agh.edu.pl" class="auth_mail" title="E-mail the corresponding author} ; Grzegorz Cios^a ; ^{grzegorz.cios@agh.edu.pl" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Residual stress ; X-ray diffraction ; Synchrotron radiation ; Grazing
• 刊名：Acta Materialia
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：123
• 期：Complete
• 页码：157-166
• 全文大小：2346 K

文摘

The presented study introduces the development of the multi-reflection grazing-incidence X-ray diffraction method (MGIXD) for residual stress determination. The proposed new methodology is aimed at obtaining more reliable experimental data and increasing the depth of non-destructive stress determination below the sample surface. To verify proposed method measurements were performed on a classical X-ray diffractometer (Cu Kα radiation) and using synchrotron radiation (three different wavelengths: λ = 1.2527 Å, λ = 1.5419 Å and λ = 1.7512 Å). The Al2017 alloy subjected to three different surface treatments was investigated in this study. The obtained results showed that the proposed development of MGIXD method, in which not only different incident angles but also different wavelengths of X-ray are used, can be successfully applied for residual stress determination, especially when stress gradients are present in the sample.