Oxidation and hot-corrosion behavior of sputtered Ti-48Al-8Cr-2Ag nanocrystalline coating

IMR OpenIR

	Oxidation and hot-corrosion behavior of sputtered Ti-48Al-8Cr-2Ag nanocrystalline coating
	Xi, YJ ; Wang, FH ; He, LL
通讯作者	Xi, YJ(Fhwang@icpm.syb.ac.cn)
	2004
发表期刊	HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS
ISSN	0255-5476
卷号	461-464 页码:1181-1188
摘要	Magnetron-sputter deposition was used to produce a Ti-48Al-8Cr-2Ag (at.%) coating on a cast alloy substrate with the same composition. The oxidation behavior of the cast Ti-48Al-8Cr-2Aa alloy and its sputtered coating was investigated in air at 800degreesC-1000degreesC. Hot corrosion was carried out in molten 75% Na2SO4 + 25% K2SO4 at 900degreesC. The results indicated that the oxidation rate of sputtered nanocrystalline coating was lower than that of the cast alloy at 900degreesC. The former formed a scale of merely Al2O3 and the latter formed a scale of Al2O3 + TiO2 mixture. For the same reason, the sputtered nanocrystalline coating exhibited much better hot corrosion resistance than the cast alloy in molten 75% Na2SO4 + 25% K2SO4 at 900degreesC. However, the nanocrystalline showed a little bit higher oxidation rate than the cast alloy at 800degreesC and 1000degreesC, because spherical surface and boundaries or free surface between columnar of the coating gave a larger actual oxidation area than the original alloy.
关键词	TiAlCrAg nanocrystalline coating high temperature oxidation 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:000223339700140
出版者	TRANS TECH PUBLICATIONS LTD
引用统计	被引频次：7[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/321006/119903
专题	中国科学院金属研究所
通讯作者	Xi, YJ
作者单位	1.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xi, YJ,Wang, FH,He, LL. Oxidation and hot-corrosion behavior of sputtered Ti-48Al-8Cr-2Ag nanocrystalline coating[J]. HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,2004,461-464:1181-1188.
APA	Xi, YJ,Wang, FH,&He, LL.(2004).Oxidation and hot-corrosion behavior of sputtered Ti-48Al-8Cr-2Ag nanocrystalline coating.HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,461-464,1181-1188.
MLA	Xi, YJ,et al."Oxidation and hot-corrosion behavior of sputtered Ti-48Al-8Cr-2Ag nanocrystalline coating".HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS 461-464(2004):1181-1188.