|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||High Entropy Alloys V
||Irradiation Responses of High-entropy Alloys at Elevated Temperatures
||Songqin Xia, Michael Gao, Tengfei Yang, Peter K. Liaw, Yong Zhang
|On-Site Speaker (Planned)
In the present study, the microstructure evolutions of AlxCoCrFeNi high-entropy alloys (HEAs) with 3 MeV Au ions at elevated temperatures ranging from 250 to 650 ̊C were studied. Transmission electron microscopy (TEM) and high-resolution TEM analysis show that the single-phase solid solution exhibits more excellent phase stability than multi-phase structures, as well as the micro-mechanism for high irradiation resistance of single-phase HEAs are also analyzed. The high configurational entropy and low atomic diffusion of single-phase HEAs maybe become more important than the interfaces of multi-phase HEAs against irradiation. Moreover, there is no observable irradiation-induced voids for all the alloys at test irradiation temperatures, suggesting the great resistant to irradiation-induced void swelling, which gives promise that the single-phase HEAs maybe pave the way for a promising irradiation-tolerant materials.
||Planned: Supplemental Proceedings volume