Manufacturing, structure and high temperature corrosion of palladium-modified aluminide coatings on nickel-base superalloy M38

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	Manufacturing, structure and high temperature corrosion of palladium-modified aluminide coatings on nickel-base superalloy M38
	D. X. He; H. R. Guan; X. F. Sun; X. X. Jiang
	2000
发表期刊	Thin Solid Films
ISSN	0040-6090
卷号	376 期号:1-2 页码:144-151
摘要	Three palladium-modified aluminide coatings were prepared by conventional pack-cementation aluminizing process on the nickel-based superalloy M38, which was previously electroplated with pure palladium, Pd-20 wt.% Ni alloy, or Pd + Ni composite plating. The structure of all coatings was thoroughly analyzed. A major difference between Pt- and Pd-modified aluminide coatings resided in the fact that the Pd zone was single-phased and the constitutive phase was beta-(Pd-x,Ni1-x)Al. The isothermal oxidation resistance of the Pd-20 wt.% Ni alloy modified coatings was better than that of the other two palladium-containing and conventional aluminide coatings in air at 1000 degreesC. The hot corrosion performance of Pd-Ni-Al coatings was also tested in Na,SO, melt at 900 degreesC. As regards their hot corrosion resistance, they behaved at least as well as commercial Pt-Al coatings under the same testing conditions and remarkably better than conventional aluminide coatings. The behavior of cyclic oxidation of Pd-Ni-Al coating was inspected at 1050 degreesC and its corrosion mechanism was also preliminary discussed. (C) 2000 Elsevier Science S.A. All rights reserved.
部门归属	acad sinica, inst met res, shenyang 110015, peoples r china.;he, dx (reprint author), univ alberta, dept chem & mat engn, edmonton, ab t6g 2g6, canada
关键词	Palladium Aluminide Coating Oxidation Hot Corrosion Turbine-blades Platinum Resistance
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WOS记录号	WOS:000165207400020
引用统计	被引频次：36[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37043
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. X. He,H. R. Guan,X. F. Sun,et al. Manufacturing, structure and high temperature corrosion of palladium-modified aluminide coatings on nickel-base superalloy M38[J]. Thin Solid Films,2000,376(1-2):144-151.
APA	D. X. He,H. R. Guan,X. F. Sun,&X. X. Jiang.(2000).Manufacturing, structure and high temperature corrosion of palladium-modified aluminide coatings on nickel-base superalloy M38.Thin Solid Films,376(1-2),144-151.
MLA	D. X. He,et al."Manufacturing, structure and high temperature corrosion of palladium-modified aluminide coatings on nickel-base superalloy M38".Thin Solid Films 376.1-2(2000):144-151.