Microstructure Evolution and Corrosion Behavior of Directionally Solidified FeCoNiCrCu High Entropy Alloy

被引:18
作者
Cui, Hongbao [1 ]
Zheng, Lifeng [2 ]
Wang, Jinyong [1 ]
机构
[1] Henan Polytech Univ, Sch Mat Sci & Engn, Jiaozuo 454000, Peoples R China
[2] Air Def Forces Command Acad, Zhengzhou 450052, Peoples R China
来源
MECHANICAL, MATERIALS AND MANUFACTURING ENGINEERING, PTS 1-3 | 2011年 / 66-68卷
关键词
Microstructure evolution; directional solidification; FeCoNiCrCu; high entropy alloys;
D O I
10.4028/www.scientific.net/AMM.66-68.146
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The microstructures of FeCoNiCrCu high entropy alloy were investigated under directional solidification. The results showed that only diffraction peak corresponding to a FCC crystal structure was observed in the directionally solidified FeCoNiCrCu alloy. With increasing solidification rate, the interface morphology would grows in planar, cellular and dendrite. Comparing the potentiodynamic polarization of as-cast and directionally solidified FeCoNiCrCu high entropy alloy in a 3.5%NaCl solution, it is clearly reveals that the corrosion resistance of directionally solidified FeCoNiCrCu alloy is superior to that of the as-cast FeCoNiCrCu alloy.
引用
收藏
页码:146 / +
页数:2
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