|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Multi-Principal Elements Alloys X
||Chemical effect on the strength of refractory high entropy alloys with severe local lattice distortion
||Yang Tong, Shuying Chen, Fanchao Meng, Peter K. Liaw, Liang Jiang
|On-Site Speaker (Planned)
Refractory high entropy alloys (RHEAs) have diverse local atomic environments caused by the large difference of chemistry and atomic size among their constituents including 3d, 4d and even 5d elements. The large chemical and atomic size difference in RHEAs can significantly improve their strength. Many studies focus on the design of high strength RHEA by exploiting local lattice distortion effect induced by atomic size difference while less attention has been paid to the ruling impact of chemical difference. To demonstrate the dominant effect of chemical difference in solid solution strengthening, we examine both the atomic size and chemical effects on strength in the RHEAs with severe local lattice distortion.
||High-Entropy Alloys, Mechanical Properties, Characterization