Hot corrosion of a novel NiO/NiFe2O4 composite coating thermally converted from the electroplated Ni-Fe alloy

被引：25
|
作者：
Ma, Li [1 ]
Zhou, Kechao [1 ]
Li, Zhiyou [1 ]
Wei, Qiuping [2 ]
Zhang, Lei [1 ]
机构：
[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
[2] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
来源：
CORROSION SCIENCE | 2011年 / 53卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Metal coatings; Molten salts; SEM; Electrodeposited films; Hot corrosion; Oxidation; OXIDE FUEL-CELL; 1000; DEGREES-C; NICKEL-IRON ALLOYS; INTERCONNECT APPLICATIONS; INERT ANODE; THIN-FILMS; FERRITE; NIFE2O4; SYSTEM; ELECTRODEPOSITION;
D O I：
10.1016/j.corsci.2011.07.017
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel NiO/NiFe2O4 composite coating thermally converted from an electroplated Ni-Fe alloy was successfully fabricated. The composite coating consisted of a NiO matrix and homogeneously distributed criss-cross intragranular and intergranular NiFe2O4 precipitates, with a very dense and flat structure. The composite, compared to bare Ni metal, exhibited increased hot corrosion resistance under an atmosphere of Na3AlF6-AlF3-CaF molten salts and air at 960 degrees C, mainly because of the dense structure and well-adhered, homogeneously dispersed intragranular and intergranular NiFe2O4 precipitates. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3712 / 3724
页数：13
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