dc.contributor.authorChen, Cheng
dc.contributor.authorLiu, Tianmo
dc.contributor.authorLv, Chengling
dc.contributor.authorLu, Liwei
dc.contributor.authorLuo, Dongzhi
dc.date.accessioned2013-07-15T02:00:43Z
dc.date.available2013-07-15T02:00:43Z
dc.date.copyright2012en_US
dc.date.issued2012
dc.identifier.urihttp://hdl.handle.net/10220/11350
dc.description.abstractFatigue properties and cyclic deformation behavior of an extruded Mg–3Al–1Zn (AZ31) alloy were investigated by performing the strain-controlled low-cycle fatigue tests at room temperature. We believed that the total strain amplitude should be closely related to fatigue properties and cyclic damage process. This study aimed to investigate the deformation mechanism from the viewpoint of strain amplitude. We found that when the total strain amplitude increased from 0.3% to 0.4%, there was a noticeable change in compressive peak stress amplitude, which might correspond to the competition between twinning–detwinning process and dislocation slips. Microstructure and fracture morphology were investigated using optical microscopy and scanning electron micrograph. At the total strain of great amplitude, fracture surfaces were characterized by the striation-like features and dimple-like structures.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesMaterials science and engineering: Aen_US
dc.rights© 2012 Elsevier B.V.en_US
dc.subjectDRNTU::Engineering::Mechanical engineering
dc.titleStudy on cyclic deformation behavior of extruded Mg–3Al–1Zn alloyen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.identifier.doihttp://dx.doi.org/10.1016/j.msea.2012.01.084


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