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
刊名	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
	2007
卷号	460 页码:214-219
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
ISSN号	0921-5093
中文摘要	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.
原文出处	://WOS:000246726200030
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/33946]
专题	金属研究所_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.