|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Advanced High Strength Steels V
||Use of Thermo-mechanical Simulation to Assess Liquid Metal Embrittlement (LME) in Zinc Coated Advanced High Strength Steels
||Kaleb Ponder, Dean Sage, Carolin Fink, Hassan Ghassemi-Armaki, Michael Karagoulis, Antonio Ramirez
|On-Site Speaker (Planned)
This work investigates Advanced High Strength Steels (AHSS) resistance to liquid metal embrittlement (LME) using thermo-mechanical simulation. As ‘next-generation’ steels become available, it is important to understand how processing conditions such as resistance spot welding (RSW) affect material performance. In this study, zinc-coated and uncoated coupons compared the effects of zinc on various Gen3 steels strength and ductility during RSW. The experiment composed of a hot tensile test with variable temperature and head rate to simulate regions throughout the RSW heat affected zone. Upon testing each sample was assessed using qualitative and quantitative test criteria to determine LME sensitivity. This study provides a straightforward testing approach to determine a variety of steels susceptibility to LME.
||Joining, Mechanical Properties, Surface Modification and Coatings