scholarly journals Fracture modeling of resistance spot welded ultra-high-strength steel considering the effect of liquid metal embrittlement crack

2021 ◽  
Vol 210 ◽  
pp. 110075
Author(s):  
Yunwu Ma ◽  
Yang Yu ◽  
Peihao Geng ◽  
Ryohei Ihara ◽  
Kyohei Maeda ◽  
...  
Keyword(s):  
Liquid Metal ◽  
High Strength Steel ◽  
High Strength ◽  
Liquid Metal Embrittlement ◽  
Resistance Spot ◽  
Ultra High Strength Steel ◽  
Fracture Modeling ◽  
Spot Welded

scholarly journals Microstructural Evolution and Mechanical Properties of Resistance Spot Welded Ultra High Strength Steel Containing Boron

2011 ◽  
Vol 52 (6) ◽  
pp. 1330-1333 ◽  
Author(s):  
Youn-Suk Jong ◽  
Young-Kook Lee ◽  
Dong-Cheol Kim ◽  
Moon-Jin Kang ◽  
In-Sung Hwang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructural Evolution ◽  
High Strength Steel ◽  
High Strength ◽  
Resistance Spot ◽  
Ultra High Strength Steel ◽  
Spot Welded

scholarly journals Liquid Metal Embrittlement of Galvanized TRIP Steels in Resistance Spot Welding

Metals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 787 ◽  
Author(s):  
Wook-Sang Jeon ◽  
Ashutosh Sharma ◽  
Jae Pil Jung
Keyword(s):  
Liquid Metal ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
High Strength Steels ◽  
High Strength ◽  
Liquid Metal Embrittlement ◽  
Surface Cracks ◽  
Resistance Spot ◽  
Research Activities ◽  
Microscopic Features

Liquid metal embrittlement (LME) in Zn-coated steels is a serious issue in automotive design. The risk of rising LME surface cracks in resistance spot welding (RSW) of Zn-coated high strength steels has triggered significant research activities across the globe. This paper presents a state-of-the-art review of the various phenomena and issues related to LME during RSW. Various aspects of LME surface cracks have been described in this review, focusing on the macro- and microscopic features of LME, spot weld cracks, the sensitivity of the LME cracks towards surface locations, welding conditions, and susceptibility to high strength and galvanized steels. We also focus on the effects of various processing factors, such as temperature, stress, microstructure, and the nature of the galvanized layer, related to studies with actual spot welds LME cracks. Finally, we summarize the possible mechanisms of embrittlement and the remedies for minimizing LME cracks, with suitable guidelines to suppress surface cracks during RSW.

Fracture behaviour and numerical study of resistance spot welded joints in high-strength steel sheet

2016 ◽  
Vol 30 (8) ◽  
pp. 602-613 ◽  
Author(s):  
Teruki Sadasue ◽  
Satoshi Igi ◽  
Koichi Taniguchi ◽  
Rinsei Ikeda ◽  
Kenji Oi
Keyword(s):  
Welded Joints ◽  
High Strength Steel ◽  
Steel Sheet ◽  
Fracture Behaviour ◽  
Numerical Study ◽  
High Strength ◽  
Resistance Spot ◽  
Spot Welded

704 Spot Welded Tensile Strength Characteristics in Ultra High Strength Steel Sheets

2016 ◽  
Vol 2016.53 (0) ◽  
pp. _704-1_-_704-2_
Author(s):  
Yu KITAHARA ◽  
Junya NAITO ◽  
Shota CHINZEI ◽  
Akira IBANO ◽  
Yuki SHIMIZU ◽  
...  
Keyword(s):  
Tensile Strength ◽  
High Strength Steel ◽  
High Strength ◽  
Strength Characteristics ◽  
Steel Sheets ◽  
Ultra High Strength Steel ◽  
Spot Welded
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