Characterizations of cold sprayed TiN particle reinforced Al2319 composite coating

被引：57
作者：
Li, W. -Y. [1 ,2 ]
Zhang, G. [2 ]
Liao, H. L. [2 ]
Coddet, C. [2 ]
机构：
[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, Shaanxi Key Lab Frict Welding Technol, Xian 710072, Peoples R China
[2] Univ Technol Belfort Montbeliard, LERMPS, F-90010 Belfort, France
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2008年 / 202卷 / 1-3期
关键词：
cold spraying; aluminum alloy; composite coating; microhardness; adhesive strength; tribological performance;
D O I：
10.1016/j.jmatprotec.2007.09.045
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
in this study, a dense Al2319/TiN composite coating was successfully prepared using cold spraying with mechanically blended powders. TiN particles were uniformly dispersed in the coating matrix with a volume fraction of 38.7 vol.%, which is higher than that of 32.7 vol.% in the powder blend. Compared with the pure Al2319 coating, the Al2319/TIN composite coating exhibits a significantly increased adhesive strength. The incorporation of the TIN particles increases the coating hardness from 106 +/- 7.8 to 154.5 +/- 18.9 HV0.2. In addition, compared with the pure Al2319 coating, the composite coating exhibits a significantly improved tribological performance. The results obtained in this work indicated that cold spraying is a promising process to fabricate Al alloy-based composite coatings. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：508 / 513
页数：6
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