Advances in ultrafine-grained materials

被引：147

作者：

Huang, Yi ^{[1
]}

Langdon, Terence G. ^{[1
,2
,3
]}

机构：

[1] Univ Southampton, Fac Engn & Environm, Mat Res Grp, Southampton SO17 1BJ, Hants, England

[2] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA

[3] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA

来源：

MATERIALS TODAY | 2013年 / 16卷 / 03期

基金：

欧洲研究理事会;

关键词：

HIGH-PRESSURE TORSION; SEVERE PLASTIC-DEFORMATION; BULK NANOSTRUCTURED MATERIALS; MICROSTRUCTURAL EVOLUTION; ALUMINUM-ALLOY; MECHANICAL-PROPERTIES; HARDNESS HOMOGENEITY; PURE ALUMINUM; MAGNESIUM ALLOY; ECAP-CONFORM;

D O I：

10.1016/j.mattod.2013.03.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This review addresses new developments in the processing and properties of ultrafine-grained (UFG) materials. These materials are produced through the application of severe plastic deformation to conventional coarse-grained metals and typically they have grain sizes within the submicrometer or even the nanometer range. Although several techniques are now available for achieving excellent homogeneity and high fractions of high-angle grain boundaries, this review concentrates on the major procedures of equal-channel angular pressing and high-pressure torsion. It is shown that UFG materials exhibit both excellent strength at ambient temperature and, if the grains are reasonably stable, outstanding superplastic properties at elevated temperatures. These materials also have a high innovation potential for use in commercial applications.

引用

页码：85 / 93

页数：9

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