Design and microstructure characterization of FeCoNiAlCu high-entropy alloy coating by plasma cladding: In comparison with thermodynamic calculation

被引：62
作者：
Cai, Zhaobing [1 ,2 ]
Wang, Yidan [2 ]
Cui, Xiufang [2 ]
Jin, Guo [1 ]
Li, Yang [1 ,2 ]
Liu, Zhe [2 ]
Dong, Meiling [1 ,2 ]
机构：
[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Key Lab Superlight Mat & Surface Technol, Inst Surface Interface Sci & Technol,Minist Educ, Harbin 150001, Heilongjiang, Peoples R China
[2] Harbin Engn Univ, Coll Mech & Elect Engn, Harbin 150001, Heilongjiang, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2017年 / 330卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Plasma cladding; High-entropy alloy coating; Microstructure characterization; Thermodynamic calculation; MECHANICAL-PROPERTIES; PHASE EVOLUTION; WEAR BEHAVIOR; DECOMPOSITION; CRMNFECONI; LAYERS;
D O I：
10.1016/j.surfcoat.2017.09.083
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Plasma cladding is an effect method to prepare a large-area coating as well as HEA coatings. In this work, the relatively simple microstructure of FeCoNiAlCu high-entropy alloy coating was successfully prepared by plasma cladding. The microstructure characterization and thermodynamic calculation were studied in detail. The synthesized FeCoNiAlCu high-entropy alloy coating is composed of an FCC1 phase enriched with Fe and Cu, an FCC2 phase enriched with Cu and a BCC phase enriched with Fe. The lattice parameter of FCC1, FCC2 and BCC phases are 3.664 angstrom, 3.634 angstrom and 2.872 angstrom, respectively. The thermodynamic calculation is successful to a certain extent,, agreeing with the experimental characterization well in terms of phase composition and the major en riched element of phases. However, establishing a developed database of CALPHAD approach is necessary to guide the design of high-entropy alloys and predict the phase composition and properties.
引用
收藏
页码：163 / 169
页数：7
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