Oxidation of a Co-base Superalloy

IMR OpenIR

	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
	2008
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	24 期号:6 页码:883-890
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.
部门归属	[hou, guichen; wei, hua; zheng, qi; sun, xiaofeng; guan, hengrong; hu, zhuangqi] chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china. [liu, zhiyuan] china aviat powerplant res inst, zhuzhou 412002, peoples r china.;wei, h (reprint author), chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china;hwei@imr.ac.cn
关键词	Co-base Superalloy Oxidation Kinetics Microstructure Coatings Alloys Aluminide Behavior Kinetics Air
URL	查看原文
WOS记录号	WOS:000261773700012
引用统计	被引频次：11[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/321006/32806
专题	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.