Mechanical properties of supersonic-impacted Al6061 powder particles

被引：14

作者：

Flanagan, Tyler J. ^{[1
]}

Bedard, Benjamin A. ^{[1
]}

Dongare, Avinash M. ^{[1
]}

Brody, Harold D. ^{[1
]}

Nardi, Aaron ^{[2
]}

Champagne, Victor K., Jr. ^{[2
]}

Aindow, Mark ^{[1
]}

Lee, Seok-Woo ^{[1
]}

机构：

[1] Univ Connecticut, Inst Mat Sci, Dept Mat Sci & Engn, 97 North Eagleville Rd,Unit 3136, Storrs, CT 06269 USA

[2] US Army, Res Lab, Weap & Mat Res Directorate, Aberdeen, MD 21005 USA

来源：

SCRIPTA MATERIALIA | 2019年 / 171卷

关键词：

High-speed deformation; Severe plastic deformation; Tension test; Dislocation; Aluminum alloys; COLD SPRAY PROCESS; REPAIR; MAGNESIUM; EVOLUTION; COATINGS;

D O I：

10.1016/j.scriptamat.2019.06.024

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The cold spray process utilizes a high-pressure gas jet to accelerate metallic particles to supersonic velocities, causing bonding to the substrate upon impact. The mechanical characterization of impacted particles is of great interest as their mechanical properties are strongly related to those of bulk cold-sprayed coatings. Here, in-situ micro-compression and tension results are presented from impacts in single-pass cold spray trials of as-atomized and heat-treated Al6061 powders. The effects of powder microstructure on the yield strength and ductility of individual impacts are discussed. Such observations contribute to a more fundamental understanding of the mechanical behavior of impacted metallic materials. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：52 / 56

页数：5

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