The effect of enamel coating on the oxidation behavior of Ti3Al-based intermetallics at 750 degrees C in air

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	The effect of enamel coating on the oxidation behavior of Ti3Al-based intermetallics at 750 degrees C in air
	Y. M. Xiong; S. L. Zhu; F. H. Wang; C. Lee
	2007
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	460 页码:214-219
摘要	The synergistic effects of alloy element Nb and enamel coating on the oxidation behavior of Ti3Al-based alloys in open air at 750 degrees C were studied in the present paper. The results showed that 17Nb alloyed Ti3Al intermetallics showed better oxidation resistance due to the formation of a compact and adhesive TiO2 scale during oxidation. Enamel coating as a barrier could protect Ti3AlNb alloys from oxidation. The coating kept intact and adhesive during discontinuous oxidation due to its good compatibility and matched thermal expansion coefficient with the substrates of Ti-based alloys. Nevertheless, the enamel coating might be degraded due to the rapid formation of Nb enriched sublayer and depletion layer at the interface of enamel/Ti3Al-23Nb and enamel/Ti3Al-27Nb. In addition, there existed detectable internal oxidation beneath the interface of enamel/Ti3Al-xNb (x = 23 and 27 at.%) due to the inward diffusion of oxygen through the imperfect Nb enriched sublayer during discontinuous oxidation. (C) 2007 Elsevier B.V. All rights reserved.
部门归属	hanyang univ, coll engn, div engn & mat sci, neomat hybrid proc lab, seoul 133791, south korea. chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china.;xiong, ym (reprint author), hanyang univ, coll engn, div engn & mat sci, neomat hybrid proc lab, 17 haengdang dong, seoul 133791, south korea;ymxiong@imr.ac.cn
关键词	Enamel Coating Nb Effect Oxidation Behavior Ti3al Alloys High-temperature-oxidation Gamma-titanium Aluminides Hot Corrosion Behaviors Pack Cementation Ti60 Alloy Resistance Nb Preoxidation Improvement Nitrogen
URL	查看原文
WOS记录号	WOS:000246726200030
引用统计	被引频次：25[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/321006/33946
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. M. Xiong,S. L. Zhu,F. H. Wang,et al. The effect of enamel coating on the oxidation behavior of Ti3Al-based intermetallics at 750 degrees C in air[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007,460:214-219.
APA	Y. M. Xiong,S. L. Zhu,F. H. Wang,&C. Lee.(2007).The effect of enamel coating on the oxidation behavior of Ti3Al-based intermetallics at 750 degrees C in air.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,460,214-219.
MLA	Y. M. Xiong,et al."The effect of enamel coating on the oxidation behavior of Ti3Al-based intermetallics at 750 degrees C in air".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 460(2007):214-219.