Oxidation behavior of a cast polycrystalline Ni-base superalloy in air: At 900 and 1000 degrees C

doi:10.1007/s11085-007-9066-x

IMR OpenIR

	Oxidation behavior of a cast polycrystalline Ni-base superalloy in air: At 900 and 1000 degrees C
	Wei, H.; Hou, G. C.; Sun, X. F.; Guan, H. R.; Hu, Z. Q.
通讯作者	Wei, H.(hwei@imr.ac.cn)
	2007-10-01
发表期刊	OXIDATION OF METALS
ISSN	0030-770X
卷号	68 期号:3-4 页码:149-163
摘要	The oxidation behavior of a cast polycrystalline Ni-base superalloy was studied at 900 and 1000 degrees C and analyzed by thermogravimetric analysis (TGA), X-ray diffraction (XRD) and SEM. The results indicate that the cast Ni-base superalloy exhibits subparabolic oxidation kinetics, which are controlled by the growth of the inner Al-rich layer. A mixed scale forms on the alloy after prolonged oxidation. The oxide scale formed on the gamma matrix is composed of an outer layer of spinel and a uniform inner, compact Al-rich layer. The oxidation behavior on the region overlying MC carbide precipitates is slightly different from that in the gamma matrix. The difference is explained by the big difference in composition between MC carbide and gamma matrix.
关键词	cast polycrystalline Ni-base superalloy oxidation kinetics microstructure
DOI	10.1007/s11085-007-9066-x
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000249269800003
出版者	SPRINGER/PLENUM PUBLISHERS
引用统计	被引频次：14[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/321006/91987
专题	中国科学院金属研究所
通讯作者	Wei, H.
作者单位	Chinese Acad Sci, Met Res Inst, Superalloy Div, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Wei, H.,Hou, G. C.,Sun, X. F.,et al. Oxidation behavior of a cast polycrystalline Ni-base superalloy in air: At 900 and 1000 degrees C[J]. OXIDATION OF METALS,2007,68(3-4):149-163.
APA	Wei, H.,Hou, G. C.,Sun, X. F.,Guan, H. R.,&Hu, Z. Q..(2007).Oxidation behavior of a cast polycrystalline Ni-base superalloy in air: At 900 and 1000 degrees C.OXIDATION OF METALS,68(3-4),149-163.
MLA	Wei, H.,et al."Oxidation behavior of a cast polycrystalline Ni-base superalloy in air: At 900 and 1000 degrees C".OXIDATION OF METALS 68.3-4(2007):149-163.