Deformation behavior of an ultrafine-grained Al-Mg alloy at different strain rates

被引：55

作者：

Fan, GJ ^{[1
]}

Wang, GY

Choo, H

Liaw, PK

Park, YS

Han, BQ

Lavernia, EJ

机构：

[1] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[2] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

来源：

SCRIPTA MATERIALIA | 2005年 / 52卷 / 09期

基金：

美国国家科学基金会;

关键词：

aluminum alloys; mechanical milling; compression test;

D O I：

10.1016/j.scriptamat.2004.12.028

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

An ultrafine-grained Al-Mg alloy was synthesized by the consolidation of cryomilled powders and subsequent hot extrusion. At strain rates of 10(-4) and 10(-3) s(-1), the stress-strain curves show the serrated-flow behavior. At strain rates of 10(-2) and 10(-1) s(-1), instead of the serrated flow, the shear band formation was observed. (C) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：929 / 933

页数：5

共 32 条

[1] PLASTIC-DEFORMATION IN METALLIC GLASSES [J].

ARGON, AS .

ACTA METALLURGICA, 1979, 27 (01) :47-58

[2] Mechanical behavior of a bulk nanostructured iron alloy [J].

Carsley, JE ;

Fisher, A ;

Milligan, WW ;

Aifantis, EC .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1998, 29 (09) :2261-2271

[3] Cyclic deformation behavior of HAYNES® HR-120® superalloy under low-cycle fatigue loading [J].

Chen, LJ ;

Liaw, PK ;

Wang, H ;

He, YH ;

McDaniels, RL ;

Jiang, L ;

Yang, B ;

Klarstrom, DL .

MECHANICS OF MATERIALS, 2004, 36 (1-2) :85-98

[4] The low-cycle fatigue and fatigue-crack-growth behavior of HAYNES® HR-120 alloy [J].

Chen, LJ ;

Liaw, PK ;

McDaniels, RL ;

Klarstrom, DL .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34A (07) :1451-1460

[5] ON THE VALIDITY OF THE HALL-PETCH RELATIONSHIP IN NANOCRYSTALLINE MATERIALS [J].

CHOKSHI, AH ;

ROSEN, A ;

KARCH, J ;

GLEITER, H .

SCRIPTA METALLURGICA, 1989, 23 (10) :1679-1683

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

Dalla Torre, F ;

Van Swygenhoven, H ;

Victoria, M .

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

[7]

FAN GJ, IN PRESS ACTA MAT

[8] SHOCK DEFORMATION OF BRITTLE SOLIDS [J].

GRADY, DE .

JOURNAL OF GEOPHYSICAL RESEARCH, 1980, 85 (NB2) :913-924

[9] THE DEFORMATION AND AGEING OF MILD STEEL .3. DISCUSSION OF RESULTS [J].

HALL, EO .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION B, 1951, 64 (381) :747-753

[10] Tension and compression behaviours of bulk ultrafine-grained Al-7.5 wt% Mg alloy [J].

Han, BQ ;

Lavernia, EJ ;

Mohamed, FA .

PHILOSOPHICAL MAGAZINE LETTERS, 2003, 83 (02) :89-96

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