Using high-pressure torsion for the cold-consolidation of copper chips produced by machining

被引：96

作者：

Zhilyaev, A. P. ^{[1
,2
]}

Gimazov, A. A. ^{[2
]}

Raab, G. I. ^{[3
]}

Langdon, T. G. ^{[4
,5
,6
]}

机构：

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

[2] Russian Acad Sci, Inst Met Superplastic Problems, Ufa 450001, Russia

[3] USATU, Inst Phys Adv Mat, Ufa 450000, Russia

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

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

[6] Univ Southampton, Sch Engn Sci, Mat Res Grp, Southampton SO17 1BJ, Hants, England

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 486卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

consolidation; copper; equal-channel angular pressing; high-pressure torsion; ultrafine grains;

D O I：

10.1016/j.msea.2007.08.070

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High-pressure torsion (HPT) was used to consolidate chips machined from coarse-grained copper and from copper processed by ECAR The results are compared with discs prepared by HPT and with discs processed by a combination of equal-channel angular pressing (ECAP) and HPT. It is demonstrated that the consolidated discs have exceptionally fine microstructures and high hardness. The results suggest the possibility of a saturation in grain refinement which may be related to a release in heat during high-pressure straining. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：123 / 126

页数：4

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