期刊
SCRIPTA MATERIALIA
卷 172, 期 -, 页码 51-55出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2019.07.008
关键词
High-entropy alloys; Nanoscale; Mechanical properties
类别
资金
- National Natural Science Foundation of China for Distinguished Young Scientists [51825401]
- Fund of the State Key Laboratory of Advanced Welding and joining
- Swedish Research Council
- U.S. Army Research Office project [W911NF-13-1-0438, W911NF-19-2-0049]
- National Science Foundation [DMR-1611180, 1809640]
A new single-phase face-centered-cubic (FCC) Co9Cr7Cu36Mn25Ni23 [atomic percent, similar hereinafter] high-entropy alloy (HEA) was prepared by arc melting. A uniform distribution of nanometer-sized precipitates was achieved. The tensile yield strength, ultimate tensile strength, and elongation were 401 MPa, 700 MPa, and 36%, respectively. The energy-dispersive spectrometer results showed that the nano-precipitates were rich in Co and Cr elements. Moreover, the crystal-forming behavior and the nanoscale-precipitates-forming mechanism were revealed. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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