Oxidation kinetics and scale morphology of a palladium-modified-aluminide coating at high temperature in air

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	Oxidation kinetics and scale morphology of a palladium-modified-aluminide coating at high temperature in air
	M. J. Li; X. F. Sun; H. R. Guan; X. X. Jiang; Z. Q. Hu
	2004
发表期刊	Oxidation of Metals
ISSN	0030-770X
卷号	61 期号:1-2 页码:91-104
摘要	The isothermal oxidation behavior of a (Ni, Pd) Al coating was investigated in air over the temperature range of 800-1150degreesC by means of TGA, XRD, SEM/EDS. The oxidation kinetics of the (Ni, Pd) Al coating obey approximately the parabolic rate law, but the transformation of theta-Al2O3 to alpha-Al2O3 results in a distinct two-step parabolic oxidation at 1000degreesC, 1050degreesC and 1100degreesC. A change in the morphology of scales with oxidation time and temperature was also observed. In comparison with the conventional simple-aluminide coating, palladium plays an important role in accelerating the diffusion of Ti from the substrate to the coating surface in the palladium-modified aluminide coating.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;li, mj (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 72 wenhua rd, shenyang 110016, peoples r china;mjli@imr.ac.cn
关键词	Ni Pd)Al Coating Oxidation Kinetics Morphology Nickel-base Superalloy Theta-alpha-al2o3 Transformation Behavior Ni3al Performance Transition Corrosion Alloys Cr
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WOS记录号	WOS:000189012500006
引用统计	被引频次：8[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/321006/35413
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. J. Li,X. F. Sun,H. R. Guan,et al. Oxidation kinetics and scale morphology of a palladium-modified-aluminide coating at high temperature in air[J]. Oxidation of Metals,2004,61(1-2):91-104.
APA	M. J. Li,X. F. Sun,H. R. Guan,X. X. Jiang,&Z. Q. Hu.(2004).Oxidation kinetics and scale morphology of a palladium-modified-aluminide coating at high temperature in air.Oxidation of Metals,61(1-2),91-104.
MLA	M. J. Li,et al."Oxidation kinetics and scale morphology of a palladium-modified-aluminide coating at high temperature in air".Oxidation of Metals 61.1-2(2004):91-104.