Cyclic oxidation behavior of palladium-modified aluminide coating

被引：38

作者：

Li, MJ ^{[1
]}

Sun, XF ^{[1
]}

Guan, HR ^{[1
]}

Jiang, XX ^{[1
]}

Hu, ZQ ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2003年 / 167卷 / 01期

关键词：

(Ni; Pd)Al coating; aluminide coating; cyclic oxidation;

D O I：

10.1016/S0257-8972(02)00865-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

(Ni,Pd)AI coating prepared by low-pressure pack cementation on the nickel-base superalloy IN738 predeposited Pd-20 wt.% Ni alloy, and their cyclic oxidation behavior was investigated by TGA, XRD, SEM/EDS and optical microscopy at 1050 degreesC. The C (Ni,Pd)AI coatings show better cyclic oxidation resistance than simple aluminide coatings compared from the cyclic oxidation kinetics and the microstructure degradation of the two types of coatings. Palladium plays a significant role in alumina stabilization and in delaying the degradation of beta-phase. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：106 / 111

页数：6

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