The use of Al-Al2O3 cold spray coatings to improve the surface properties of magnesium alloys

被引：248
作者：
Spencer, K. [1 ]
Fabijanic, D. M. [2 ]
Zhang, M. -X. [1 ]
机构：
[1] Univ Queensland, Div Mat, Sch Engn, St Lucia, Qld 4072, Australia
[2] Deakin Univ, Ctr Mat & Fibre Innovat, Geelong, Vic 3217, Australia
来源：
SURFACE & COATINGS TECHNOLOGY | 2009年 / 204卷 / 03期
基金：
澳大利亚研究理事会;
关键词：
Cold spray; Kinetic metallization; Metal matrix composite; Wear; Corrosion; SLIDING WEAR; MECHANICAL-PROPERTIES; HEAT-TREATMENT; ALUMINUM; MICROSTRUCTURE; CORROSION; BEHAVIOR; FRICTION; METALS; COPPER;
D O I：
10.1016/j.surfcoat.2009.07.032
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Pure Al and 6061 aluminium alloy based Al2O3 particle-reinforced composite coatings were produced on AZ91E substrates using cold spray. The strength of the coating/substrate interface in tension was found to be stronger than the coating itself The coatings have corrosion resistance similar to that of bulk pure aluminium in both salt spray and electrochemical tests. The wear resistance of the coatings is significantly better than that of the AZ91 Mg substrate, but the significant result is that the wear rate of the coatings is several decades lower than that of various bulk Al alloys tested for comparison. The effect of post-spray heat treatment, the volume fraction of Al2O3 within the coating and of the type of Al powder used in the coatings on the corrosion and wear resistance was also discussed. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：336 / 344
页数：9
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