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The effect of ageing on the compressive deformation of Mg-Sn-Zn-Na alloy
conference contribution
posted on 2016-01-01, 00:00 authored by E B Motlagh, Alireza Ghaderi, Sitarama KadaSitarama Kada, Peter LynchPeter Lynch, Matthew BarnettMatthew BarnettThe influence of ageing on deformation twinning in an extruded Mg-6Sn-3Zn-0.04Na alloy is investigated. In-situ compression tests have been carried out using high resolution synchrotron X-Ray Diffraction (XRD) to measure the influence of precipitates on twining activity. Synchrotron experiments revealed the increase in the critical resolved shear stress of twinning with ageing. The compressive yield strength (along the extrusion direction) of the aged sample increased by ∼ 150% over the non-aged specimen. To obtain statistical insight into the twinning activity, the microstructure of the non-aged and aged samples (200°C, 24 hours) deformed up to ∼1% plastic strain was studied using optical microscopy. A higher number of thinner twins were observed in the microstructure of the aged sample compared to the non-aged sample.
History
Event
Magnesium Technology. Symposium (2016 : Nashville, Tennessee)Series
Magnesium Technology 2016Pagination
93 - 96Publisher
John Wiley & SonsLocation
Nashville, TennesseePlace of publication
Hoboken, N.J.Start date
2016-02-14End date
2016-02-18ISSN
1545-4150ISBN-13
9781119225805Language
engPublication classification
E Conference publication; E1 Full written paper - refereedCopyright notice
2016, The Minerals, Metals & Materials SocietyEditor/Contributor(s)
A Singh, K Solanki, M Manuel, N NeelamegghamTitle of proceedings
Magnesium Technology 2016 : Proceedings of a Symposium held during TMS2016 145th Annual Meeting & ExhibitionUsage metrics
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