Influence of sol-gel derived Al2O3 film on the oxidation behavior of a Ti3Al based alloy

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	Influence of sol-gel derived Al2O3 film on the oxidation behavior of a Ti3Al based alloy
	M. Zhu; M. S. Li; Y. L. Li; Y. C. Zhou
	2006
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	415 期号:1-2 页码:177-183
摘要	Al2O3 thin films were deposited on a Ti3Al based alloy (Ti-24Al-14Nb-3V-0.5Mo-0.3Si) by sol-gel processing. Isothermal oxidation at temperatures of 900-1000 degrees C and cyclic oxidation at 800-900 degrees C were performed to test their effect on the oxidation behavior of the alloy. Results of the oxidation tests show that the oxidation parabolic rate constants of the alloy were reduced due to the applied thin film. This beneficial effect became weaker after longer oxidation time at 1000 degrees C. TiO2 and Al2O3 were the main phases formed on the alloy. The thin film could promote the growth of Al2O3, causing an increase of the Al2O3 content in the composite oxides, sequentially decreased the oxidation rate. Nb/Al enriched as a layer in the alloy adjacent to the oxide/alloy interface in both the coated and uncoated alloy. The coated thin film decreased the thickness of the Nb/Al enrichment layer by reducing the scale growth rate. (c) 2005 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, high performance ceram div, shenyang 110016, peoples r china. chinese acad sci, grad sch, beijing 100039, peoples r china.;li, ms (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, high performance ceram div, 72 wenhua rd, shenyang 110016, peoples r china;mshli@imr.ac.cn
关键词	Ti3al Based Alloy Sol-gel Processing Al2o3 Thin Film High-temperature Oxidation Titanium Aluminides Resistance Coatings Improvement Air
URL	查看原文
WOS记录号	WOS:000234270400023
引用统计	被引频次：16[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/321006/34779
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Zhu,M. S. Li,Y. L. Li,et al. Influence of sol-gel derived Al2O3 film on the oxidation behavior of a Ti3Al based alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2006,415(1-2):177-183.
APA	M. Zhu,M. S. Li,Y. L. Li,&Y. C. Zhou.(2006).Influence of sol-gel derived Al2O3 film on the oxidation behavior of a Ti3Al based alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,415(1-2),177-183.
MLA	M. Zhu,et al."Influence of sol-gel derived Al2O3 film on the oxidation behavior of a Ti3Al based alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 415.1-2(2006):177-183.