Impression creep properties of a semi-solid processed magnesium–aluminum alloy containing calcium and rare earth elements

The creep properties of a thixoformed magnesium–aluminum alloy containing calcium and rare earth elements were studied under shear modulus-normalized stresses ranging from 0.0225 to 0.035 at temperatures of 150–212 °C using the impression creep technique. Analysis of the creep mechanism based on a p...

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Bibliographic Details
Published inScripta materialia Vol. 65; no. 3; pp. 221 - 224
Main Authors Nami, B., Razavi, H., Miresmaeili, S.M., Mirdamadi, Sh, Shabestari, S.G.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.08.2011
Subjects
Alloying elements
Calcium
Calcium base alloys
Creep
Creep (materials)
Impression creep
Magnesium alloys
Mathematical analysis
Rare earth elements
Semi-solid processing
Thixoforming
Creep
Calcium
Rare earth elements
Thixoforming
Magnesium alloys
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Summary:The creep properties of a thixoformed magnesium–aluminum alloy containing calcium and rare earth elements were studied under shear modulus-normalized stresses ranging from 0.0225 to 0.035 at temperatures of 150–212 °C using the impression creep technique. Analysis of the creep mechanism based on a power-law equation indicated that pipe diffusion-controlled dislocation climb is the dominant mechanism during creep. The alloy has a better creep resistance than high-pressure die-cast magnesium–aluminum alloy.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2011.04.011