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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