Homogeneous and ultrafine-grained metal matrix nanocomposite achieved by accumulative press bonding as a novel severe plastic deformation process

被引：29

作者：

Amirkhanlou, Sajjad ^{[1
,2
]}

Ketabchi, Mostafa ^{[1
]}

Parvin, Nader ^{[1
]}

Orozco-Caballero, Alberto ^{[2
]}

Carreno, Fernando ^{[2
]}

机构：

[1] Amirkabir Univ Technol, Dept Min & Met Engn, Tehran, Iran

[2] CENIM CSIC, Dept Met Phys, Madrid 28040, Spain

来源：

SCRIPTA MATERIALIA | 2015年 / 100卷

关键词：

Severe plastic deformation (SPD); Accumulative press bonding (APB); Nanocomposite; Ultrafine-grained microstructure; Analytical methods; YIELD STRENGTH; COMPOSITES; ALLOY; PARTICLES; SIZE;

D O I：

10.1016/j.scriptamat.2014.12.007

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Accumulative press bonding (APB) is proposed as a novel method for inducing severe plastic deformation. This process can produce a homogeneous and ultrafine-grained nanocomposite, which is extremely difficult to obtain by other processes. AA1050/SiCp nanocomposite with an average grain size of 280 nm and well-developed high-angle grain boundaries (39 degrees average misorientation angle and 82% high-angle boundaries) exhibited the highest tensile strength reported in the literature, i.e. 284 MPa. Theoretical models revealed that the contributions of Orowan and grain refinement strengthening mechanisms to yield strength were 76.6% and 14.8%, respectively. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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页码：40 / 43

页数：4

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