Heat treatment of cold spray coatings to form protective intermetallic layers

被引：132

作者：

Spencer, K. ^{[1
]}

Zhang, M. -X. ^{[1
]}

机构：

[1] Univ Queensland, Sch Engn, Div Mat, St Lucia, Qld 4072, Australia

来源：

SCRIPTA MATERIALIA | 2009年 / 61卷 / 01期

基金：

澳大利亚研究理事会;

关键词：

Intermetallics; Diffusion; Cold spray; Aluminium; Magnesium; AZ91D MAGNESIUM ALLOY; CORROSION-RESISTANCE; SURFACE; MECHANISM; BEHAVIOR;

D O I：

10.1016/j.scriptamat.2009.03.002

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new technique for generating thick Mg/Al intermetallic coatings on Mg-Al-Zn alloys through post-spray annealing of aluminium cold spray coatings is discussed. Annealing at 400 degrees C, which is close to the solution treatment temperature for AZ91 alloy, results in the formation of thick Mg17Al12 and Al3Mg2 intermetallic layers. These layers have high hardness, and increase the corrosion resistance to a level similar to that of aluminium alloys. (c) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：44 / 47

页数：4

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