Oxidation of a Co-base Superalloy

CORC > 金属研究所 > 中国科学院金属研究所

	Oxidation of a Co-base Superalloy
	G. C. Hou ; Z. Y. Liu ; H. Wei ; Q. Zheng ; X. F. Sun ; H. R. Guan ; Z. Q. Hu
刊名	Journal of Materials Science & Technology
	2008
卷号	24 期号:6 页码:883-890
关键词	Co-base superalloy Oxidation Kinetics Microstructure coatings alloys aluminide behavior kinetics air
ISSN号	1005-0302
中文摘要	The oxidation behavior of a cast polycrystalline Co-base superalloy was studied at temperatures from 900 to 1050 degrees C and analyzed by thermogravimetric analysis (TGA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results indicate that a cast Co-base superalloy follows the subparabolic oxidation kinetics at 900 and 1000 degrees C, which are controlled by the growth of the inner Cr-rich layer, and that after oxidation at 1050 degrees C for 200 h, it almost exhibits the linear oxidation kinetics possible due to the volatility of Cr-rich oxide. A mixed scale forms on the alloy after prolonged oxidation. The oxide scale formed at 900 and 1000 degrees C is composed of an outer layer of spinel and an inner continuous Cr-rich layer and at 1050 degrees C is composed of a very discontinuous Cr-rich layer.
原文出处	://WOS:000261773700012
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32806]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	G. C. Hou,Z. Y. Liu,H. Wei,et al. Oxidation of a Co-base Superalloy[J]. Journal of Materials Science & Technology,2008,24(6):883-890.
APA	G. C. Hou.,Z. Y. Liu.,H. Wei.,Q. Zheng.,X. F. Sun.,...&Z. Q. Hu.(2008).Oxidation of a Co-base Superalloy.Journal of Materials Science & Technology,24(6),883-890.
MLA	G. C. Hou,et al."Oxidation of a Co-base Superalloy".Journal of Materials Science & Technology 24.6(2008):883-890.