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Effect of Materials Stack-ups on Fatigue Performance of DP780 and Aluminized Coated Boron Steel GMAW Lap Joint
Technical Paper
2007-01-0634
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this study, fatigue performance of Gas Metal Arc Welded (GMAW) joint for 1.5 mm uncoated DP780 and 1.0 mm and aluminized coated boron (or USIBOR) steel was investigated. Metallurgical properties of DP780 to coated boron steel dissimilar steel lap joints were evaluated using optical microscopy. Microhardness traverse, static and fatigue tests were conducted on these joints. Finite element analysis (FEA) was used to identify the stress distribution of the weld joints with different stack-ups and at same loading conditions. It was found that position of the material (top or bottom in lap joint configuration) had a significant impact on fatigue performance of the dissimilar joint. The amount of heat introduced by welding to coated boron steel is also believed to be important to the fatigue performance of the dissimilar joints. The findings in this study can be used when aluminized boron steel is involved in dissimilar steel and dissimilar thickness GMAW lap joint design.
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Citation
Koganti, R., Angotti, S., Joaquin, A., and Jiang, C., "Effect of Materials Stack-ups on Fatigue Performance of DP780 and Aluminized Coated Boron Steel GMAW Lap Joint," SAE Technical Paper 2007-01-0634, 2007, https://doi.org/10.4271/2007-01-0634.Also In
References
- Sakuma et al, “Next-generation high-strength sheet steel utilizing transformation-induced plasticity (TRIP) effect” Nippon Steel Technical Report, no. 64 Jan 1995 20 25
- Uchihara et al. “Effects of metallurgical properties on fatigue limit of arc-welded sheet steel” Journal of the Iron and Steel Institute of Japan 86 5 2000 336 342
- Yan et al. “Performance evaluation of GMAW welds for four advanced high strength steels” SAE Paper 2005-01-0904