A flake powder metallurgy approach to Al2O3/Al biomimetic nanolaminated composites with enhanced ductility

被引：137

作者：

Jiang, Lin ^{[1
]}

Li, Zhiqiang ^{[1
]}

Fan, Genlian ^{[1
]}

Zhang, Di ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

来源：

SCRIPTA MATERIALIA | 2011年 / 65卷 / 05期

关键词：

Metal-matrix composites; Nanocomposite; Layered structures; Ductility; Flake powder metallurgy; ULTRAFINE-GRAINED ALUMINUM; METALS; FILMS; NANOCRYSTALLINE; DEFORMATION; NACRE;

D O I：

10.1016/j.scriptamat.2011.05.022

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A simple and scalable methodology called "flake powder metallurgy" (flake PM) has been developed to fabricate biomimetic Al2O3/Al composites. Nanoflake Al powders with native Al2O3 skins were used as building blocks to rapidly assemble into biomimetic nanolaminated structures via compacting and extrusion, giving rise to strong and ductile composites with tensile strength of 262 MPa and plasticity of 22.9%. Thus, it is evidenced that well-balanced strength and ductility can be achieved in biomimetic metal-matrix composites by flake PM. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：412 / 415

页数：4

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