|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||High Entropy Alloys V
||L-91: Precipitation in High-entropy FeNiMnAlCr Alloy
||Margaret Wu, Zhangwei Wang, Paul Munroe, Ian Baker
|On-Site Speaker (Planned)
Upon casting, Fe<SUB>40.4</SUB>Ni<SUB>11.3</SUB>Mn<SUB>34.8</SUB>Al<SUB>7.5</SUB>Cr<SUB>6</SUB> (at. %) with and without carbon additions up to 1.1 at. % are single-phase, f.c.c. high entropy alloys (HEAs), which can show high strengths, high elongations and high work-hardening rates. After long-term annealing at 973 K, the un-doped HEA exhibits rod-shaped precipitates, while the HEA doped with 1.1 at. % C shows two types of lenticular precipitates. The precipitation is accompanied by increases in hardness in both cases. Interestingly, precipitation is not observed above 1273 K. This presentation will outline the effects of carbon content and various heat treatments on the precipitation kinetics and its influence on the mechanical properties. This research was supported by the US Department of Energy, Office of Basic Energy Sciences grant DE-FG02-07ER46392.
||Planned: Supplemental Proceedings volume