Activation energy in hot forming and recrystallization models for magnesium alloy AZ31

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F13%3A86088480" target="_blank" >RIV/61989100:27360/13:86088480 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s11665-012-0327-8" target="_blank" >http://dx.doi.org/10.1007/s11665-012-0327-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11665-012-0327-8" target="_blank" >10.1007/s11665-012-0327-8</a>

Result language

angličtina

Original language name

Activation energy in hot forming and recrystallization models for magnesium alloy AZ31

Original language description

Kinetics of the dynamic, as well as postdynamic recrystallization of the wrought magnesium alloy AZ31, was ascertained. Continuous compression tests associated with the study of dynamic recrystallization were realized at temperatures from 523 to 723 K and at the strain rates from 0.001 to 10 s-1. The activation energy in hot forming was determined as Q = 158 kJ/mol for stress-strain curves of conventional shape, or Q = 146 kJ/mol for stress-strain curves with the concave initial phase affected by twinning. If the Zener-Hollomon parameter Z>9.131012 s21 the deformation necessary for the initiation of dynamic recrystallization is almost independent on the forming parameters. Using the results of the stress relaxation tests, equations describing the kinetics of metadynamic recrystallization and the grain size originated in such a way were developed and the effect of individual variables was evaluated.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

<a href="/en/project/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regional materials science and technology centre</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Materials Engineering and Performance

ISSN

1059-9495

e-ISSN

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Volume of the periodical

22

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

890-897

UT code for WoS article

000314899800032

EID of the result in the Scopus database

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