Protective effect of the sputtered TiAlCrAg coating on the high-temperature oxidation and hot corrosion resistance of Ti-Al-Nb alloy

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	Protective effect of the sputtered TiAlCrAg coating on the high-temperature oxidation and hot corrosion resistance of Ti-Al-Nb alloy
	Xi, YJ ; Wang, FH ; He, LL
通讯作者	Xi, YJ(yjxi@imr.ac.cn)
	2004-11-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	20 期号:6 页码:724-727
摘要	The effect of a sputtered Ti-48Al-8Cr-2Ag (at. pct) coating on the oxidation resistance of the cast Ti-46.5Al-5Nb (at. pct) alloy was investigated in air at 1000similar to1100degreesC. Hot corrosion in molten 75 wt pct Na2SO4+25 wt pct K2SO4 was investigated at 900degreesC. The scale on the cast TiAlNb tends to spall in air, while the scale on coating is very adherent. The sputtered Ti-48Al-8Cr-2Ag coating remarkably improved high temperature oxidation resistance of the cast Ti-46.5Al-Ob alloy because of the formation of an adherent Al2O3 scale. Due to the inward diffusion of Cr, Kirkendall voids were found at the coating/bstrate interface. TiAlCrAg coating provided excellent hot corrosion resistance for TiAlNb alloy in molten 75 wt pct Na2SO4+25 wt pct K2SO4 at 900degreesC due to the formation of a continuous Al2O3 scale.
关键词	high temperature oxidation TiAlCrAg coating hot-corrosion
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:000225623300024
出版者	JOURNAL MATER SCI TECHNOL
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/81467
通讯作者	Xi, YJ
作者单位	1.Chinese Acad Sci, Met Res Inst, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China 2.Shenyang Natl Lab MatSci, Met Res Inst, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xi, YJ,Wang, FH,He, LL. Protective effect of the sputtered TiAlCrAg coating on the high-temperature oxidation and hot corrosion resistance of Ti-Al-Nb alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2004,20(6):724-727.
APA	Xi, YJ,Wang, FH,&He, LL.(2004).Protective effect of the sputtered TiAlCrAg coating on the high-temperature oxidation and hot corrosion resistance of Ti-Al-Nb alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,20(6),724-727.
MLA	Xi, YJ,et al."Protective effect of the sputtered TiAlCrAg coating on the high-temperature oxidation and hot corrosion resistance of Ti-Al-Nb alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 20.6(2004):724-727.