Oxidation and hot corrosion behavior of Ti2AlNb-based alloy with and without enamel coating at 800 degrees C

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	Oxidation and hot corrosion behavior of Ti2AlNb-based alloy with and without enamel coating at 800 degrees C
	D. Y. Zheng; Y. M. Xiong; S. L. Zhu; M. S. Li; F. H. Wang
	2006
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	16 页码:S2050-S2054
摘要	The oxidation and hot corrosion behavior of Ti2AlNb-based alloy with and without enamel coating at 800 degrees C was investigated. The results indicated that Ti-22Al-25Nb alloy exhibited poor oxidation resistance at 800 V. The constitution of oxide scale had the effect on its oxidation rate. Because of the S and Cl accelerating the corrosion process, Ti-22Al-25Nb alloy suffered severe hot corrosion and exhibited very poor hot corrosion resistance. Enamel coating could remarkably improve the high temperature oxidation resistance of Ti-22Al-25Nb alloy because it had good chemical stability and matched thermal expansion coefficient with the substrate. In (Na,K)(2)SO4+NaCl molten salts at 800 V, chemical reactions between molten salts and enamel coating occurred and complicated products formed on the surface of the enamel coating; Cl- in the molten salts could penetrate through the coating and induced the substrate corrosion, but enamel coating still had good hot corrosion resistance.
部门归属	chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china.;zheng, dy (reprint author), chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china;dyzheng@imr.ac.cn
关键词	Ti(2)Ainb Enamel Coating Oxidation Hot Corrosion Mechanical-properties Intermetallics Resistance Creep Phase Air
URL	查看原文
WOS记录号	WOS:000244524400185
引用统计	被引频次：5[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/321006/34752
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. Y. Zheng,Y. M. Xiong,S. L. Zhu,et al. Oxidation and hot corrosion behavior of Ti2AlNb-based alloy with and without enamel coating at 800 degrees C[J]. Transactions of Nonferrous Metals Society of China,2006,16:S2050-S2054.
APA	D. Y. Zheng,Y. M. Xiong,S. L. Zhu,M. S. Li,&F. H. Wang.(2006).Oxidation and hot corrosion behavior of Ti2AlNb-based alloy with and without enamel coating at 800 degrees C.Transactions of Nonferrous Metals Society of China,16,S2050-S2054.
MLA	D. Y. Zheng,et al."Oxidation and hot corrosion behavior of Ti2AlNb-based alloy with and without enamel coating at 800 degrees C".Transactions of Nonferrous Metals Society of China 16(2006):S2050-S2054.