Isothermal Oxidation Behavior of Single-Crystal Nickel-Base Superalloy DD10

IMR OpenIR

	Isothermal Oxidation Behavior of Single-Crystal Nickel-Base Superalloy DD10
	Liu Chengbao; Li Hui; Lou Langhong
通讯作者	Liu Chengbao(cbliu@imr.ac.cn)
	2010-08-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	39 期号:8 页码:1407-1410
摘要	The isothermal oxidation behaviors of two kinds of single-crystal nickel-base superalloys DD10 with different cobalt contents were investigated at 900, 1000 and 1100 degrees C in air by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy disperse X-ray analysis (EDX). It is found that increasing the cobalt content can decrease the diffusion activity energy of the alloy and thus increase the oxidation rate slightly. For the oxidation at 900 degrees C and 1000 degrees C, the mass gain basically obeys the parabola law. The oxide scales consist of three layers: an outer layer of Cr(2)O(3) and TiO(2), a thin intermediate layer of CrTaO(4) and Ta(2)O(5), and a continuous inner layer of Al(2)O(3). For the oxidation at 1100 degrees C, because of the severe spalling of the scale and the volatilization of the CrO(3), the kinetics curves deviate from the parabolic law a little. Some spinels such as NiCr(2)O(4), CoAl(2)O(4), CoNiO(2) and Co(2)TiO(4) form and inner nitridation phenomenon happens.
关键词	nickel base superalloyDD10 single crystal oxidation
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000281904000019
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：1[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/321006/101418
专题	中国科学院金属研究所
通讯作者	Liu Chengbao
作者单位	Chinese Acad Sci, Superalloys Div, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu Chengbao,Li Hui,Lou Langhong. Isothermal Oxidation Behavior of Single-Crystal Nickel-Base Superalloy DD10[J]. RARE METAL MATERIALS AND ENGINEERING,2010,39(8):1407-1410.
APA	Liu Chengbao,Li Hui,&Lou Langhong.(2010).Isothermal Oxidation Behavior of Single-Crystal Nickel-Base Superalloy DD10.RARE METAL MATERIALS AND ENGINEERING,39(8),1407-1410.
MLA	Liu Chengbao,et al."Isothermal Oxidation Behavior of Single-Crystal Nickel-Base Superalloy DD10".RARE METAL MATERIALS AND ENGINEERING 39.8(2010):1407-1410.