Speaker
Description
High entropy alloys (HEAs) show interesting mechanical properties and deformation behavior due to their unique structural characteristics, such as high configuration entropy and large local chemical fluctuations. In this talk, our research efforts on strengthening mechanisms in this special family of metallic materials will be summarized. Specifically, focuses will be placed on the following aspects:
1) Precipitation hardening in typical fcc HEAs; precipitation behavior and its effects on strengthening mechanism at both ambient and elevated temperatures;
2) Unique interstitial solid hardening in the bcc TaHfZrTi HEAs; formation mechanism of ordered oxygen complexes and its influences on mechanical performance will be presented;
3) Transformation mediated strengthening in typical bcc HEAs; effects of transformation-induced-plasticity and deformation behavior will be analyzed.
| Speaker Country | China |
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