Quantification of residual stresses in electron beam welded fracture mechanics specimens

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• 作者：Priyesh Kapadia^a ; ^{priyesh.kapadia@imperial.ac.uk} ; Catrin Davies^a ; Thilo Pirling^b ; Michael Hofmann^c ; Robert Wimpory^d ; Foroogh Hosseinzadeh^e ; David Dean^f ; Kamran Nikbin^a
• 关键词：Residual stress ; Neutron diffraction ; Contour method ; Slitting ; Electron beam welding ; Type 316H stainless steel
• 刊名：International Journal of Solids and Structures
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：106-107
• 期：Complete
• 页码：106-118
• 全文大小：5240 K
• 卷排序：106

文摘

Electron beam welding is shown to produce repeatable residual stress fields in thick samples. Longitudinal stress components of up to three times the base material's yield stress were measured. The residual stresses measured by neutron diffraction, the contour method and slitting techniques are in good agreement. A correction was applied to the contour method measurements to reduce the error due to cut tip deformations.