Influence of the microstructural changes and induced residual stresses on tensile properties of wrought magnesium alloy friction stir welds

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• 作者：Loreleï ; Commin^a ; ^{lorelei.commin@kit.edu} ; Myriam Dumont^b ; René ; Rotinat^a ; Fabrice Pierron^a ; Jean-Eric Masse^c ; Laurent Barrallier^c
• 关键词：Friction stir welding ; Magnesium alloys ; Speckle interferometry ; Residual stress ; EBSD
• 刊名：Materials Science and Engineering ; A
• 出版年：2012
• 期刊代码：61_09215093
• 类别：ms
• 出版时间：15 August, 2012
• 卷：551
• 期：Complete
• 页码：288-292
• 文件大小：835 K

摘要

Friction stir welding induces a microstructural evolution and residual stresses that will influence the resulting mechanical properties. Friction stir welds produced from magnesium alloy hot rolled plates were studied. Electron back scattered diffraction was used to determine the texture evolution, residual stresses were analysed using X ray diffraction and tensile tests coupled with speckle interferometry were performed. The residual stresses induced during friction stir welding present a major influence on the final mechanical properties.