Oxidation behaviors of TiAlNb with coatings at 800 degrees C and 900 degrees C respectively

IMR OpenIR

	Oxidation behaviors of TiAlNb with coatings at 800 degrees C and 900 degrees C respectively
	Xiong, YM; Zhu, SL; Wang, FH
通讯作者	Xiong, YM()
	2006-02-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	35 期号:2 页码:213-216
摘要	In this present, the oxidation behaviors of TiAlNb intermetallics with and without sputtering NiCrAlY and TiAlCr coatings and enamel coating at 800 degrees C and 900 degrees C respectively were studied. The results indicate that TiAlNb bare alloy has the ability to resist oxidation at 800 degrees C and 900 degrees C by forming the adhesive layered oxide scale of Nb-doped TiO2 and Al2O3. And the three coatings could protect TiAlNb intermetallics from oxidation at the two temperatures. However, heavy interdiffusion occurr at the interfaces of coatings/TiAlNb after oxidation. A continuous protective Al2O3 scale formed at part of interface of NiCrAlY/TiAlNb to hinder the interdiffusion and the inward-diffusion of oxygen. A protective Al2O3 scale could form on TiAlCr coating during oxidation at elevate temperature. However, the interdiffusion of Nb and Cr at the interface might be detrimental to the long-term oxidation resistance and mechanical performance of the substrate. Enamel coating could provide protection to TiAlNb alloy due to its good thermal chemistry stability and matched thermal expansion coefficient with the substrate. But reaction layer occurred at the interface of enamel/TiAlNb would weaken the adhesive ability of coatings to the substrate.
关键词	TiAlNb intermetallics oxidation behaviors high temperature coatings
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:000236090000011
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：2[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/321006/86935
专题	中国科学院金属研究所
通讯作者	Xiong, YM
作者单位	Chinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xiong, YM,Zhu, SL,Wang, FH. Oxidation behaviors of TiAlNb with coatings at 800 degrees C and 900 degrees C respectively[J]. RARE METAL MATERIALS AND ENGINEERING,2006,35(2):213-216.
APA	Xiong, YM,Zhu, SL,&Wang, FH.(2006).Oxidation behaviors of TiAlNb with coatings at 800 degrees C and 900 degrees C respectively.RARE METAL MATERIALS AND ENGINEERING,35(2),213-216.
MLA	Xiong, YM,et al."Oxidation behaviors of TiAlNb with coatings at 800 degrees C and 900 degrees C respectively".RARE METAL MATERIALS AND ENGINEERING 35.2(2006):213-216.