中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Microstructure and high-temperature wear and oxidation resistance of laser clad gamma/W2C/TiC composite coatings on gamma-TiAl intermetallic alloy

文献类型:期刊论文

作者Liu XB(刘秀波); Yu RL(于荣莉)
刊名Journal of Alloys and Compounds
出版日期2007
卷号439期号:1-2页码:279-286
通讯作者邮箱liubobo0828@yahoo.com.cn
关键词Gamma-Tial Intermetallic Alloy Gamma/W2C/Tic Composite Coatings High-Temperature Wear Resistance Laser Cladding Tungsten Carbide Wc-Co Behavior
ISSN号0925-8388
通讯作者Liu, XB (reprint author), Chinese Acad Sci, Inst Mech, Lab Laser Intelligent Mfg, 15 Beisihuanxi Rd, Beijing 100080, Peoples R China.
中文摘要There are very strong interests in improving the high-temperature wear resistance of the y-TiAl intermetallic alloy, especially when applied as tribological moving components. In this paper, microstructure, high-temperature dry sliding wear at 600 degrees C and isothermal oxidation at 1000 degrees C on ambient air of laser clad gamma/W2C/TiC composite coatings with different constitution of Ni-Cr-W-C precursor mixed powders on TiAl alloy substrates have been investigated. The results show that microstructure of the laser fabricated composite coatings possess non-equilibrium microstructure consisting of the matrix of nickel-base solid solution gamma-NiCrAl and reinforcements of TiC, W2C and M23C6 carbides. Higher wear resistance than the original TiAl alloy is achieved in the composite coatings under high-temperature wear test conditions. However, the oxidation resistance of the laser clad gamma/W2C/TiC composite coatings is deceased. The corresponding mechanisms resulting in the above behaviors of the laser clad composite coatings are discussed. (c) 2006 Elsevier B.V. All rights reserved.
类目[WOS]Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]TUNGSTEN CARBIDE ; WC-CO ; BEHAVIOR
收录类别SCI
语种英语
WOS记录号WOS:000247383300048
公开日期2009-08-03 ; 2010-06-13
源URL[http://dspace.imech.ac.cn/handle/311007/33961]  
专题力学研究所_力学所知识产出(1956-2008)
推荐引用方式
GB/T 7714
Liu XB,Yu RL. Microstructure and high-temperature wear and oxidation resistance of laser clad gamma/W2C/TiC composite coatings on gamma-TiAl intermetallic alloy[J]. Journal of Alloys and Compounds,2007,439(1-2):279-286.
APA 刘秀波,&于荣莉.(2007).Microstructure and high-temperature wear and oxidation resistance of laser clad gamma/W2C/TiC composite coatings on gamma-TiAl intermetallic alloy.Journal of Alloys and Compounds,439(1-2),279-286.
MLA 刘秀波,et al."Microstructure and high-temperature wear and oxidation resistance of laser clad gamma/W2C/TiC composite coatings on gamma-TiAl intermetallic alloy".Journal of Alloys and Compounds 439.1-2(2007):279-286.

入库方式: OAI收割

来源:力学研究所

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