The effect of martensitic transformation on residual stress in resistance spot welded high-strength steel sheets

• Published in: Journal of alloys and compounds Vol. 577; pp. S684 - S689
• Main Authors: Iyota, Muneyoshi, Mikami, Yoshiki, Hashimoto, Tadafumi, Taniguchi, Koichi, Ikeda, Rinsei, Mochizuki, Masahito
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.11.2013
• Subjects: Alloys; Computer simulation; Computer simulations; High strength steels; Martensitic transformations; Mathematical models; Metals and alloys; Phase transitions; Rapid-solidification; Residual stress; Sheet metal; Spot welding; Metals and alloys; Rapid-solidification; Computer simulations; Phase transitions
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2012.06.109

► The numerical simulation considering the martensitic transformation was performed. ► Changing yield stress and changing thermal strain influences on residual stress. ► We compared the residual stress between simulated and experimental results. ► Considering the martensitic transformation helps to predict residual stress. This paper examines the effect of martensitic transformation on the residual stress in spot welded high-strength steel sheets. Numerical simulations of spot welding were performed to examine the residual stress. Experiments were also conducted to validate the simulations. The results indicate that taking into account the martensitic transformation in the numerical simulations helps to predict the residual stress more accurately.