TY - GEN
T1 - Importance of crystallographic texture of AZ31B on flow stress anisotropy and tension-compression asymmetry
AU - Al-Maharbi, M.
AU - Foley, D.
AU - Karaman, I.
AU - Beyerlein, I.
AU - Hartwig, K. T.
AU - Kecskes, L. J.
AU - Mathaudhu, S.
PY - 2010
Y1 - 2010
N2 - The crystallographic texture of AZ31B magnesium alloy processed using equal channel angular extrusion (ECAE) was found to play an important role in the flow stress anisotropy and tension-compression (T/C) asymmetry of this alloy. In order to obtain different crystallographic textures, the AZ31B Mg alloy was ECAE processed following different conventional and hybrid ECAE routes. A visco-plastic self-consistent (VPSC) crystal plasticity model was employed to predict the texture evolution during ECAE. Despite the dynamic recrystallization taking place during the ECAE processing at 200°C and the continuous grain refinement with the number of ECAE passes, the crystallographic texture was successfully predicted up to four passes. The flow stress anisotropy and T/C asymmetry of the samples processed up to four ECAE passes, were, then compared with those processed up to one and two passes only.
AB - The crystallographic texture of AZ31B magnesium alloy processed using equal channel angular extrusion (ECAE) was found to play an important role in the flow stress anisotropy and tension-compression (T/C) asymmetry of this alloy. In order to obtain different crystallographic textures, the AZ31B Mg alloy was ECAE processed following different conventional and hybrid ECAE routes. A visco-plastic self-consistent (VPSC) crystal plasticity model was employed to predict the texture evolution during ECAE. Despite the dynamic recrystallization taking place during the ECAE processing at 200°C and the continuous grain refinement with the number of ECAE passes, the crystallographic texture was successfully predicted up to four passes. The flow stress anisotropy and T/C asymmetry of the samples processed up to four ECAE passes, were, then compared with those processed up to one and two passes only.
KW - AZ31B
KW - Equal channel angular extrusion
KW - Flow Stress Anisotropy
KW - Magnesium
KW - Tension-compression asymmetry
KW - Viscoplastic self-consistent model
UR - http://www.scopus.com/inward/record.url?scp=77952381144&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77952381144&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77952381144
SN - 9780873397469
T3 - Magnesium Technology
SP - 445
EP - 450
BT - Magnesium Technology 2010 - Held During TMS 2010 Annual Meeting and Exhibition
T2 - Magnesium Technology 2010 - TMS 2010 Annual Meeting and Exhibition
Y2 - 14 February 2010 through 18 February 2010
ER -