Wear resistance enhancement of electroless nanocomposite coatings via incorporation of alumina nanoparticles prepared by milling

被引：34

作者：

Li, Changjin ^{[1
]}

Wang, Yanmin ^{[1
,2
]}

Pan, Zhidong ^{[1
,2
]}

机构：

[1] S China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510640, Peoples R China

[2] Minist Educ, Key Lab Specially Funct Mat, Guangzhou 510640, Peoples R China

来源：

MATERIALS & DESIGN | 2013年 / 47卷

关键词：

Wet grinding process; High energy density stirred bead mill; Nano-sized alumina particles; Electroless nanocomposite coating; CORROSION-RESISTANCE; COMPOSITE COATINGS; MECHANICAL-PROPERTIES; BEHAVIOR; FRICTION;

D O I：

10.1016/j.matdes.2012.12.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electroless Ni-P-Al2O3 nanocomposite coatings were deposited on steel surface from a plating solution with alumina (alpha-Al2O3) nano-particles prepared by mechanical milling in a high energy density ceramic stirred bead mill. The size and specific surface area of the nano-sized alumina particles were determined by acoustic particle sizer and nitrogen adsorption surface area analyzer. The phase structure, morphology and elemental composition of Ni-P-Al2O3 nano-composite coatings were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), respectively. Effect of the nanoparticle concentration in the plating bath on the micro-hardness, wear resistance and corrosion resistance of the as-deposited and the heat-treated coatings was investigated. The results show that the incorporation of alumina nanoparticles can enhance the micro-hardness and wear resistance of electroless Ni-P-Al2O3 nanocomposite coatings, but affect the corrosion resistance. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：443 / 448

页数：6

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