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Research Progress of Refractory High-Entropy Alloys(PDF)

MATERIALS CHINA[ISSN:1674-3962/CN:61-1473/TG]

Issue:
2019年第08期
Page:
768-774
Research Field:
Publishing date:

Info

Title:
Research Progress of Refractory High-Entropy Alloys
Author(s):
LIU Zhangquan QIAO Junwei
(Research Center for HighEntropy Alloys, School of Materials Science and Engineering,Taiyuan University of Technology, Taiyuan 030024, China)
Keywords:
high-entropy alloys refractory alloys microstructure mechanical properties wear resistance high temperature oxidation resistance
CLC:

PACS:
TG1323+2;TG139
DOI:
10.7502/j.issn.1674-3962.201812016
DocumentCode:

Abstract:
Being different from traditional alloys, high-entropy alloys are composed of five or more principal elements. Moreover, the concentration of each element is between 5at% and 35at%. Due to their excellent high-temperature performance, high-entropy alloys attract the interest of many researchers. Refractory elements are metals with a melting point above 1800 ℃ and a certain amount of reserves, represented by tungsten. Subsequently, After their principal elements can be three or more kinds and the concentration of each element can be more than 35at%, refractory highentropy alloys have achieved rapid development. The preparation methods, microstructure, and phase composition of refractory high-entropy alloys were introduced. The properties of refractory high-entropy alloys were described, including room-temperature and high-temperature mechanical properties, main strengthening mechanisms, wearresistant performance and high-temperature oxidation resistance. Finally, the challenges and potential applications of refractory high-entropy alloys were discussed in detail.

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Last Update: 2019-07-31