Hot Compression Deformation Behavior of AE42 Magnesium Alloy

DOI

10.2991/icmsa-15.2015.115How to use a DOI?

Keywords

AE42 Magnesium Alloy, Hot Compression Deformation, Constitutive Equation, Flow Stress.

Abstract

The hot compression deformation behavior of AE42 magnesium alloy was investigated at the temperature range from 250 to 450 , the strain rate range from 0.001 to10 s-1 and the maximum reduction of 60 %. The relationships between flow stresses, deformation temperatures and strain rates of AE42 magnesium alloy were analyzed. The constitutive equation at elevated temperature was given. The results show that the flow stress decreases with the increasing of deformation temperature and the decreasing of strain rate, which can be described by a constitutive equation in hyperbolic sine law as =A[sinh( )]nexp( Q/RT), and can also be described by Zener-Hollomon parameters, calculated A, , n and Q are 4.64×1012 s 1, 0.0151 MPa 1, 7.34 and 173.29 kJ/mol, respectively. The dominated soften mechanisms of the AE42 magnesium alloy transform from dynamic recovery to dynamic recrystallization with increasing of the temperature and decreasing of the strain rate.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Rui Zhang
AU  - Bin-Bin Tang
AU  - Pei-Peng Jin
PY  - 2014/06
DA  - 2014/06
TI  - Hot Compression Deformation Behavior of AE42 Magnesium Alloy
BT  - Proceedings of the 2015 International Conference on Material Science and Applications
PB  - Atlantis Press
SP  - 629
EP  - 635
SN  - 2352-541X
UR  - https://doi.org/10.2991/icmsa-15.2015.115
DO  - 10.2991/icmsa-15.2015.115
ID  - Zhang2014/06
ER  -