MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Development of Constitutive Equation on Superplastic RS P/M Mg–Y–Zn Alloy
Masato TsujikawaHidetoshi SomekawaSung Wook ChungKenji Higashi
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2005 Volume 46 Issue 10 Pages 2287-2290

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Abstract

A constitutive equation of rapid solidification (RS) powder metallurgy (P/M) magnesium alloy was constructed analytically from normalized strain rate-stress plots. Data related to RS P/M magnesium alloy showed deviation from those of conventional superplastic magnesium alloys; they indicated greater strength or lower strain rates than conventional superplastic magnesium alloys because the grains have a unique structure on superplastic flow. A constitutive equation for superplastic flow was developed using a metal matrix composite model.

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© 2005 The Japan Institute of Metals and Materials
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