In situ neutron diffraction investigation of deformation twinning and pseudoelastic-like behaviour of extruded AZ31 magnesium alloy

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dc.contributor.authorMuránsky, Oen_AU
dc.contributor.authorCarr, DGen_AU
dc.contributor.authorŠittner, Pen_AU
dc.contributor.authorOliver, ECen_AU
dc.date.accessioned2010-04-07T06:22:51Zen_AU
dc.date.accessioned2010-04-30T05:09:21Zen_AU
dc.date.available2010-04-07T06:22:51Zen_AU
dc.date.available2010-04-30T05:09:21Zen_AU
dc.date.issued2009-06en_AU
dc.date.statistics2009-06en_AU
dc.description.abstractIn situ neutron diffraction has been used to investigate the deformation twinning and untwinning during cyclic uniaxial straining of hydrostatically extruded AZ31 magnesium alloy. The development of the internal stresses and microstructure in the polycrystalline alloy when twinning takes place is explained on the basis of the two pairs of parent {10.0}||, {11.0}|| and twin {00.2}||, {10.3}|| grain families. The experimentally observed pseudoelastic-like behaviour in stress–strain cycles is interpreted as being due to the activation of reversal twinning processes during loading–unloading cycles. It is proposed that the driving force for the observed untwinning is the existence of high tensile stresses in favourably oriented grains which result from significant twinning activity prior to unloading from the peak stress. © 2009, Elsevier Ltd.en_AU
dc.identifier.citationMuransky, O., Carr, D. G., Sittner, P., & Oliver, E. C. (2009). In situ neutron diffraction investigation of deformation twinning and pseudoelastic-like behaviour of extruded AZ31 magnesium alloy. International Journal of Plasticity, 25(6), 1107-1127. doi:10.1016/j.ijplas.2008.08.002en_AU
dc.identifier.govdoc1603en_AU
dc.identifier.issn0749-6419en_AU
dc.identifier.issue6en_AU
dc.identifier.journaltitleInternational Journal of Plasticityen_AU
dc.identifier.pagination1107-1127en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijplas.2008.08.002en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3088en_AU
dc.identifier.volume25en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectMagnesium alloysen_AU
dc.subjectTwinningen_AU
dc.subjectDeformationen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectStressesen_AU
dc.subjectIn-situ processingen_AU
dc.titleIn situ neutron diffraction investigation of deformation twinning and pseudoelastic-like behaviour of extruded AZ31 magnesium alloyen_AU
dc.typeJournal Articleen_AU
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