Synthesis and tribological behavior of electroless Ni-P-WC nanocomposite coatings

被引：70

作者：

Liu, Y. Y.

Yu, J.

Huang, H.

Xu, B. H.

Liu, X. L.

Gao, Y.

Dong, X. L. ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Mat Modificat Laser Ion & Electron, Dalian 116024, Liaoning, Peoples R China

[2] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Liaoning, Peoples R China

[3] Shenyang Univ Technol, Shenyang 110016, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2007年 / 201卷 / 16-17期

基金：

中国国家自然科学基金;

关键词：

nanometer-sized WC; electroless deposition; microhardness; tribological properties;

D O I：

10.1016/j.surfcoat.2007.01.035

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ni-P-WC nanocomposite coatings were prepared by electroless deposition with embedded nanometer-sized WC particles. The microhardness and tribological properties of the nanocomposite coatings, in as-deposited and annealed states, were investigated and compared with conventional Ni-P coating. It was seen that Ni-P-WC nano-coatings exhibited a low friction coefficient, high hardness, and heat-treatment of these coatings at 400 degrees C for 1 h could further increase the microhardness and wear resistance. This improvement was attributed to the existence of WC nano-phase grains and the crystallization of a hard Ni3P phase. The abrasive wear was superior for the Ni-P-WC nano-coatings, while the combined adhesive and fatigue mechanism was better for the conventional Ni-P coating. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：7246 / 7251

页数：6

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