摘要
Thermodynamically, the multi-principal-component compositions of high entropy alloys (HEAs) bring diversified phase transformation paths. In this study, we report that a γ″ phase precipitates from the face centered cubic (FCC) matrix and then abnormally transforms into a ε phase, instead of the δ phase as reported in superalloys. The ε phase has a (NiCo)3Nb-type hexagonal crystal structure. The phase transformation takes places in a manner of peritectoid reaction: γ″ + FCC → ε. The present findings indicate a high probability for researchers to find new efficient strengthening phases as well as interesting phase transformation mechanism in HEAs.
源语言 | 英语 |
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页(从-至) | 281-285 |
页数 | 5 |
期刊 | Scripta Materialia |
卷 | 146 |
DOI | |
出版状态 | 已出版 - 15 3月 2018 |