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Hot Workability, Microstructural Control and Rate‐Controlling Mechanisms in Cast‐Homogenized AZ31 Magnesium Alloy
Author(s) -
Prasad Yellapregada Venkata Rama Krishna,
Rao Kamineni Pitcheswara
Publication year - 2009
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800204
Subject(s) - materials science , magnesium alloy , metallurgy , hot working , alloy , microstructure , magnesium , strain rate , atmospheric temperature range , thermodynamics , physics
Optimum conditions for microstructural control in industrial hot working of cast and homogenized AZ31 magnesium alloys are evaluated by using a processing map. The recommended window for bulk metal working of this alloy is the domain in the temperature range 300–450 °C and strain rate range 1–10 s −1 , and the optimum processing parameters are 400 °C and 10 s −1 , where grain‐boundary self diffusion is the rate‐controlling mechanism.