Comparison of Isothermal Oxidation Behavior of Co-10Cr-xSi(x=0,5,10)Alloys at 1 073K

被引：1

作者：

Junhuai Xiang ^{[1
]}

Ling Wang ^{[1
]}

Honghua Zhang ^{[1
]}

Lingyun Bai ^{[1
]}

Changjun Wan ^{[1
]}

Ganlan Yang ^{[1
]}

机构：

[1] Jiangxi Key Laboratory of Surface Engineering,Jiangxi Science and Technology Normal University

来源：

Journal of Beijing Institute of Technology | 2018年 / 27卷 / 03期

基金：

中国国家自然科学基金;

关键词：

cobalt-chromium-silicon; isothermal oxidation; high temperature; microstructure;

D O I：

10.15918/j.jbit1004-0579.18009

中图分类号：

TG132.3 [特种热性质合金];

学科分类号：

080502 ;

摘要：

The oxidation behavior of Co-10 Cr-xSi(x=0,5,10,nominal composition,at%)alloys in 0.1 MPa pure O2 at 1 073 Kwas investigated.Co-10 Cr presents the worst oxidation resistance with the mass gain of about 7.531 mg/cm2 after 24 hoxidation,while Co-10 Cr-10 Si presents the best oxidation resistance with the much lower mass gain of about 0.078 mg/cm2.Co-10 Cr-10 Si is about two magnitudes lower than that of Co-10 Cr.The oxidation behavior of Co-10 Cr-5 Si is intermediate between that of Co-10 Cr and Co-10 Cr-10 Si.The nodular oxides have occupied most of the alloy surface,and their microstructure is similar to Co-10 Cr,to some extent.On the contrary,only a fraction of the surface is covered by the Cr2 O3 layer,whose microstructure is similar to that of Co-10 Cr-10 Si.

引用

页码：379 / 384

页数：6

共 27 条

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