Tensile and Fatigue Properties of Single and Multiple Dissimilar Welded Joints of DP980 and HSLA

被引:1
作者
Q. L. Cui
D. Parkes
D. Westerbaan
S. S. Nayak
Y. Zhou
D. C. Saha
D. Liu
F. Goodwin
S. Bhole
D. L. Chen
机构
[1] Northeastern University,State Key Laboratory of Rolling and Automation
[2] Ryerson University,Department of Mechanical and Industrial Engineering
[3] University of Waterloo,Department of Mechanical and Mechatronics Engineering
[4] Teck Metals Ltd,undefined
[5] International Zinc Association,undefined
来源
Journal of Materials Engineering and Performance | 2017年 / 26卷
关键词
AHSS; dissimilar joint; DP steel; fatigue; fiber laser welding; HSLA; tensile strength;
D O I
暂无
中图分类号
学科分类号
摘要
The present study focused on single and multiple dissimilar joints between DP980 and high-strength low-alloy (HSLA) galvanized steels. The tensile properties of the dissimilar joint between the strong DP980 and the relatively soft HSLA reflected only the properties of HSLA with plastic deformation, and final fracture took place entirely in HSLA. The fatigue properties of the dissimilar joints were more intriguing, with the strong DP980 outperforming at high stress amplitude and the ductile HSLA outperforming at low stress amplitude. For different load amplitudes, fatigue failure occurred in different materials and at different locations. The fatigue strength of DP980 was more negatively impaired by weld defects than that of HSLA.
引用
收藏
页码:783 / 791
页数:8
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