材料科学
铝热剂
涂层
腐蚀
合金
冶金
压痕硬度
沉积(地质)
基质(水族馆)
图层(电子)
热喷涂
复合材料
铝
微观结构
海洋学
地质学
古生物学
生物
沉积物
作者
Gang Chen,Lihua Zhu,Shucheng Shen,Chengshang Zhou
标识
DOI:10.1080/02670844.2018.1524036
摘要
High-entropy alloy (HEA) coatings demonstrate excellent corrosion resistance and wear resistance. However, their applications are limited owing to a complicated process and high costs. In the present work, an FeCrNiMnAl HEA coating was synthesised by spray deposition combining with thermite reaction using a mixture of Fe 2 O 3 , CrO 3 , MnO 2 , Ni, and Al powders as precursors. After spray deposition, the as-formed coating layer consisted of two body-centred cubic phases, and showed good metallurgical bonding with the substrate. The average microhardness value of the FeCrNiMnAl HEA coating reached 432.2 ± 10.8 HV, which was higher than that of the substrate (259.5 ± 8.4 HV). The coating also exhibited superior wear resistance and corrosion resistance compared with the substrate. This method has great potential for preparing HEA coatings.
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