A Study on the Phenomenological Constitutive Model of Mg-12Gd-5Y-3Zn-0.6Zr Magnesium Alloy Forming at Elevated Temperature

Guang Lu; Zhi Min Zhang; Yong Xue; Bao Cheng Li

doi:10.4028/www.scientific.net/AMM.624.71

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 624A Study on the Phenomenological Constitutive Model...

A Study on the Phenomenological Constitutive Model of Mg-12Gd-5Y-3Zn-0.6Zr Magnesium Alloy Forming at Elevated Temperature

Abstract:

Quantities Mg-12Gd-5Y-3Zn-0.6Zr magnesium alloy billets were compressed with true strain 0.7 on hot process simulator at 350,400,450,480^°C under strain rates of 0.001, 0.01, 0.1 and 0.5s^-1. A constitutive model with a few parameters is used to characterize the dynamic recrystallization strain softening of Mg-12Gd-5Y-3Zn-0.6Zr alloy, which comprehensively reflect the effects of the deformation temperature, strain and strain rate on flow stress.

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Periodical:

Applied Mechanics and Materials (Volume 624)

Pages:

71-76

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.624.71

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Online since:

August 2014

Authors:

Guang Lu*, Zhi Min Zhang, Yong Xue, Bao Cheng Li

Keywords:

Constitutive Model, Dynamic Recrystallization, Mg-Gd-Y-Zn-Zr Magnesium Alloy, Processing Map, Strain Softening

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