An analytical constitutive law for twinning dominated flow in magnesium

被引:92
作者
Barnett, MR
Davies, CHJ
Ma, X
机构
[1] Deakin Univ, Sch Engn, Geelong, Vic 3217, Australia
[2] Monash Univ, Sch Phys & Mat Engn, Clayton, Vic 3800, Australia
关键词
D O I
10.1016/j.scriptamat.2004.11.022
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The progress of "c-axis tension" twinning in magnesium is represented in an analytical framework and this is used as a basis for predicting the flow stress. The difference in the stress-strain curves between tension and compression can thus be modelled with a change to a parameter that reflects the fraction of grains that undergo twinning. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:627 / 632
页数:6
相关论文
共 16 条
[1]   Mechanical behaviour of cast magnesium alloys [J].
Abbott, T ;
Easton, M ;
Song, W .
MAGNESIUM ALLOYS 2003, PTS 1 AND 2, 2003, 419-4 :141-146
[2]   A mechanistic understanding of the formability of magnesium: Examining the role of temperature on the deformation mechanisms [J].
Agnew, SR ;
Duygulu, O .
MAGNESIUM ALLOYS 2003, PTS 1 AND 2, 2003, 419-4 :177-188
[3]   In-situ measurement of internal strain evolution during deformation dominated by mechanical twinning [J].
Agnew, SR ;
Brown, DW ;
Vogel, SC ;
Holden, TM .
ECRS 6: PROCEEDINGS OF THE 6TH EUROPEAN CONFERENCE ON RESIDUAL STRESSES, 2002, 404-7 :747-752
[4]  
Agnew SR, 2002, MAGNESIUM TECHNOLOGY 2002, P169
[5]   The transformation of slip dislocations during twinning of copper-aluminum alloy crystals [J].
Basinski, ZS ;
Szczerba, MS ;
Niewczas, M ;
Embury, JD ;
Basinski, SJ .
REVUE DE METALLURGIE-CAHIERS D INFORMATIONS TECHNIQUES, 1997, 94 (09) :1037-1043
[6]   DEFORMATION TWINNING [J].
CHRISTIAN, JW ;
MAHAJAN, S .
PROGRESS IN MATERIALS SCIENCE, 1995, 39 (1-2) :1-157
[7]   A dislocation-based model for all hardening stages in large strain deformation [J].
Estrin, Y ;
Toth, LS ;
Molinari, A ;
Brechet, Y .
ACTA MATERIALIA, 1998, 46 (15) :5509-5522
[8]  
FRANCILLETTE H, 2003, J MATER PROCESS TECH, V142, P44
[9]   Incorporation of deformation twinning in crystal plasticity models [J].
Kalidindi, SR .
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1998, 46 (02) :267-+
[10]   Role of deformation twinning on strain hardening in cubic and hexagonal polycrystalline metals [J].
Kalidindi, SR ;
Salem, AA ;
Doherty, RD .
ADVANCED ENGINEERING MATERIALS, 2003, 5 (04) :229-+