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Journal of Materials Science
Erschienen in: Journal of Materials Science 22/2015

01.11.2015 | Original Paper

Microhardness, microstructure and tensile behavior of an AZ31 magnesium alloy processed by high-pressure torsion

verfasst von: Jie Xu, Xinwei Wang, Mahmood Shirooyeh, Guangnan Xing, Debin Shan, Bin Guo, Terence G. Langdon

Erschienen in: Journal of Materials Science | Ausgabe 22/2015

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Abstract

An AZ31 magnesium alloy was processed by high-pressure torsion (HPT) at room temperature under an imposed pressure of 6.0 GPa. Microstructural analysis showed that the HPT processing introduced significant grain refinement with a reduction in grain size from ~35 μm in the initial annealed condition to ~110 nm after ten turns of HPT. Microhardness measurements showed that a reasonable level of hardness homogeneity was achieved across the disk processed through ten turns. The results from tensile testing demonstrated that the ultrafine-grained (UFG) AZ31 alloy processed by HPT exhibits high ductility with a maximum elongation of ~400 % at the relatively low testing temperature of 423 K. The results confirm that the UFG AZ31 magnesium alloy processed by HPT through ten turns has a strong potential for use in micro-forming applications.
Vorheriger Artikel Strong reinforcing effects from galactoglucomannan hemicellulose on mechanical behavior of wet cellulose nanofiber gels
Nächster Artikel Fatigue behavior of sylramic-iBN/BN/CVI SiC ceramic matrix composite in combustion environment

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Metadaten
Titel
Microhardness, microstructure and tensile behavior of an AZ31 magnesium alloy processed by high-pressure torsion
verfasst von
Jie Xu
Xinwei Wang
Mahmood Shirooyeh
Guangnan Xing
Debin Shan
Bin Guo
Terence G. Langdon
Publikationsdatum
01.11.2015
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 22/2015
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-015-9300-x

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