Strain rate sensitivity and apparent activation volume measurements on equal channel angular extruded Cu processed by one to twelve passes

被引：87

作者：

Dalla Torre, F ^{[1
]}

Pereloma, EV ^{[1
]}

Davies, CHJ ^{[1
]}

机构：

[1] Monash Univ, Sch Phys & Mat Engn, Victorian Ctr Adv Mat Mfg, Melbourne, Vic 3800, Australia

来源：

SCRIPTA MATERIALIA | 2004年 / 51卷 / 05期

关键词：

ECAE; strain rate sensitivity; activation volume;

D O I：

10.1016/j.scriptamat.2004.05.021

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The strain rate sensitivity in and the apparent activation volume 1, of equal channel angular extruded Cu up to 12 passes was measured by strain rate cycling tests in compression. With increasing number of passes of ECAE an increase in m and a decrease in V-ap were measured. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：367 / 371

页数：5

共 12 条

[1] Grain size dependence of the plastic deformation kinetics in Cu [J].

Conrad, H .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 341 (1-2) :216-228

[2] Nanocrystalline electrodeposited Ni: microstructure and tensile properties [J].

Dalla Torre, F ;

Van Swygenhoven, H ;

Victoria, M .

ACTA MATERIALIA, 2002, 50 (15) :3957-3970

[3]

DALLATORRE F, 2004, MRS SPRING C P

[4] Atomistic simulations as guidance to experiments [J].

Derlet, PM ;

Hasnaoui, A ;

Van Swygenhoven, H .

SCRIPTA MATERIALIA, 2003, 49 (07) :629-635

[5] Influence of strain rate & temperature on the mechanical response of ultrafine-grained Cu, Ni, AND Al-4Cu-0.5Zr [J].

Gray, GT ;

Lowe, TC ;

Cady, CM ;

Valiev, RZ ;

Aleksandrov, IV .

NANOSTRUCTURED MATERIALS, 1997, 9 (1-8) :477-480

[6] An abnormal strain rate effect on tensile behavior in nanocrystalline copper [J].

Lu, L ;

Li, SX ;

Lu, K .

SCRIPTA MATERIALIA, 2001, 45 (10) :1163-1169

[7] Characterization of thermally activated dislocation mechanisms using transient tests [J].

Martin, JL ;

Lo Piccolo, B ;

Kruml, T ;

Bonneville, J .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 322 (1-2) :118-125

[8] TEM investigation of multidirectionally deformed copper [J].

Mingler, B ;

Karnthaler, HP ;

Zehetbauer, M ;

Valiev, RZ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 319 :242-245

[9] On the relationship between uniaxial yield strength and resolved shear stress in polycrystalline materials [J].

Stoller, RE ;

Zinkle, SJ .

JOURNAL OF NUCLEAR MATERIALS, 2000, 283 :349-352

[10] Paradox of strength and ductility in metals processed by severe plastic deformation [J].

Valiev, RZ ;

Alexandrov, IV ;

Zhu, YT ;

Lowe, TC .

JOURNAL OF MATERIALS RESEARCH, 2002, 17 (01) :5-8

← 1 2 →