Oxidation behavior of the single-crystal Ni-base superalloy DD32 in air at 900, 1000, and 1100 degrees C

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	Oxidation behavior of the single-crystal Ni-base superalloy DD32 in air at 900, 1000, and 1100 degrees C
	L. Huang; X. F. Sun; H. R. Guan; Z. Q. Hu
	2006
发表期刊	Oxidation of Metals
ISSN	0030-770X
卷号	65 期号:5-6 页码:391-408
摘要	The isothermal-oxidation behavior of the single-crystal Ni-base superalloy DD32 was studied over the temperature range from 900-1100 degrees C and analyzed by OM, TGA, XRD, EDX, SED, and EPMA. The alloy DD32 obeyed a subparabolic rate law during oxidation at 900 and 1000 degrees C, while the alloy showed a rather high oxidation rate at 1100 degrees C. The severe composition segregation, which resulted from the solidification process, led to the formation of different scale on the dendritic and interdendritic regions. Internal nitride (AlN) was observed in the subsurface zone of dendritic areas, but absent in interdendritic areas. The oxidation mechanism of the alloy DD32 is discussed by comparing with other alloys.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;huang, l (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china;lhuang@imr.ac.cn
关键词	Single-crystal Ni-base Superalloy Dd32 Oxidation Kinetics Microstructure High-temperature Oxidation Cr-al Alloys Internal Nitridation Coatings
URL	查看原文
WOS记录号	WOS:000241356600006
引用统计	被引频次：18[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/321006/34258
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Huang,X. F. Sun,H. R. Guan,et al. Oxidation behavior of the single-crystal Ni-base superalloy DD32 in air at 900, 1000, and 1100 degrees C[J]. Oxidation of Metals,2006,65(5-6):391-408.
APA	L. Huang,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2006).Oxidation behavior of the single-crystal Ni-base superalloy DD32 in air at 900, 1000, and 1100 degrees C.Oxidation of Metals,65(5-6),391-408.
MLA	L. Huang,et al."Oxidation behavior of the single-crystal Ni-base superalloy DD32 in air at 900, 1000, and 1100 degrees C".Oxidation of Metals 65.5-6(2006):391-408.