Improvements on the wear resistance of high thermal conductivity Cu alloys using an electroless Ni-P coating prior to PVD deposition

被引：12

作者：

Avelar-Batista, J. C. ^{[1
]}

Spain, E. ^{[1
]}

Letch, M. ^{[1
]}

Housden, J. ^{[1
]}

Beechey, R. ^{[1
]}

机构：

[1] Tecvac Ltd, Cambridge CB4 5UG, England

来源：

SURFACE & COATINGS TECHNOLOGY | 2006年 / 201卷 / 07期

关键词：

PVD coatings; electroless Ni-P coatings; Cu alloy; plastic injection moulding;

D O I：

10.1016/j.surfcoat.2006.08.038

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

An attempt to improve the load support for hard PVD coatings on soft Cu alloys has been made by using a medium phosphorous content electroless Ni-P coating prior to PVD deposition, envisaging the application of these coating/substrate systems in plastic injection moulding. Several PVD coatings, including TiN, CrN, CrAIN, multilayered CrAIN, WC-C, multilayered CrAIN/WC-C were deposited onto an Ampeoloy 940 Cu alloy in two conditions: 'standard' and electroless Ni-P plated. The effect of the electroless Ni-P coating on the coating/substrate performance was evaluated by pin-on-disc wear and impact tests. Ultra-microhardness and surface roughness measurements were also used to characterise the resulting coating/substrate systems. The electroless Ni-P coating reduced the wear rates of the PVD-coated Cu alloys and increased the impact wear resistance. Among the PVD coatings nialled, CrN, CrAIN and multilayered CrAIN coatings on electroless Ni-P provided the lowest wear rates. (c) 2006 Elsevier B.V All rights reserved.

引用

页码：4052 / 4057

页数：6

共 13 条

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