|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||High Entropy Alloys V
||Weldability of Single-phase and Multi-phase High Entropy Alloys
||Zhenggang Wu, Stan A David, Zhili Feng, Hongbin Bei
|On-Site Speaker (Planned)
To investigate the effects of alloying and phases on the weldability on the high-entropy alloys (HEAs), we selected two model alloys, namely, the single phase (fcc) CrCoFeMnNi and two-phase (fcc + hcp) Fe50Mn30Co10Cr10 to conduct autogenous welding experiments using lab-scaled materials. The phase stability, segregations, and the sensitivity to thermal cracks after welding thermal cycles were investigated by using microstructural observation. Mechanical testing on the weldments is also conducted to determine the possible degradation of the mechanical properties. The deformation behavior will be examined by comparison of the post-tested microstructures in the base metals, heat-effected zone, and the fusion zones. We will also discuss the role of different phases on the weld/solidification behavior by compare those two model alloys.
||Planned: Supplemental Proceedings volume