期刊
SCRIPTA MATERIALIA
卷 186, 期 -, 页码 336-340出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2020.04.035
关键词
High-entropy alloys (HEAs); Precipitation strengthening; Heterogeneous structure; High strength; High ductility
类别
资金
- National Natural Science Foundation of China [51771201]
- Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science [20180510059]
High-entropy alloys (HEAs) have displayed numerous unique features, however, high strength and high ductility are still the urgently desired mechanical property. The current study reports an outstanding combination of high strength and excellent ductility achieved in a eutectic high-entropy alloy (EHEA) AlCoCrFeNi2.1. The great achievement relays on a dual-phase heterogeneous structure strengthened with nano-precipitates. The heterogeneous structure provides the alloy a good combination of strength and ductility, and nano-precipitates in both of the face-centered cubic (FCC) and B2 phases generate an extra significant contribution to strength. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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