期刊
MATERIALS LETTERS
卷 130, 期 -, 页码 277-280出版社
ELSEVIER
DOI: 10.1016/j.matlet.2014.05.134
关键词
High-entropy alloy; Metals and alloys; Plasticity; Microstructure
资金
- National Natural Science Foundation of China [51271018]
- National Nature Science Foundation of China [51010001]
- 111 project [B07003]
- Program for ChangJiang Scholars and Innovative Research Team in University
- proprietary program of the State Key Laboratory for Advanced Metals and Materials, USTB [2011Z-01, 2012Z-01]
A novel refractory Hf25Nb25Ti25Zr25 high entropy alloy (HEA) with single body centered cubic (BCC) structure was prepared by copper mold cast method. This HEA still holds the single BCC phase even after furnace cooling from homogenization at 1573 K for 6 h. The fracture strength and plastic strain of this HEA reach about 969 MPa and 14.9%, respectively. There is significant work hardening effect in this HEA, which is considered as resulting from the movement and multiplication of dislocations. (C) 2014 Elsevier B.V. All rights reserved.
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