| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
|
| Presentation Title |
Effect of the Tilting Welding Electrode on the Tensile-Shear Fatigue Property for the Resistance Spot Welding Galvanized Advanced High Strength Steel |
| Author(s) |
Yu Sun, Jiayi Zhou, Rongxun Hu, Yulai Gao |
| On-Site Speaker (Planned) |
Yu Sun |
| Abstract Scope |
The liquid metal embrittlement (LME) cracks are generally unavoidable during the resistance spot welding (RSW) process of the Zn-coated advanced high strength steels (AHSSs). The role of tilting electrode in the tensile-shear fatigue property of the welding joint has not been systematically explored. In this study, the effect of the tilting electrode on the fatigue property of the RSW joints were comparatively analyzed. The results revealed that the fatigue property of the joint with tilting angle 5° accompanying a pull out failure mode was better than that with the tilting angle 0° accompanying a partial interfacial failure mode. In particular, the fatigue crack did not initiate from the LME cracks, yet came from the notch position between the interface of the two bonded steel sheets. It deemed that the joint welded with the tilting electrode could produce a bigger nugget than that without tilting, obtaining a high fatigue property. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Mechanical Properties, Surface Modification and Coatings |