Effect of a thin Cr2O3 film on oxidation at 600 °C of a Sm(CobalFe0.22Cu0.08Zr0.02)7.5 alloy

被引：10
|
作者：
Zhao, H. [1 ]
Peng, X. [1 ]
Yang, Z. [1 ]
Guo, Zh. [2 ]
Li, W. [2 ]
Wang, F. [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
[2] Cent Iron & Steel Res Inst, Div Funct Mat, Beijing 100081, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2013年 / 226卷
关键词：
Alloy; Magnetic material; Oxidation; Coating; SEM; TEM; TEMPERATURE MAGNETIC-PROPERTIES; THERMAL-STABILITY; MICROSTRUCTURE; NITRIDATION; NICKEL; SYSTEM; PHASE;
D O I：
10.1016/j.surfcoat.2013.03.031
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A Sm(CobalFe0.22Cu0.08Zr0.02)(7.5) magnetic alloy, after having been arc-ion-plated with a thin Cr2O3 film, was dramatically increased in oxidation resistance. It formed an internal oxidation-affected zone (IOAZ) with a thickness only about 1.5 mu m at 600 degrees C in air for 20 h. TEM characterizations showed that the IOAZ was double-layered, consisting of an outer extremely thin Co-phase band and an inner oxidation zone with a matrix of Co-Fe solid solution dispersing Sm2O3 particles. The process for the formation of the IOAZ has been also presented in detail. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：22 / 26
页数：5
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