Solute strengthening of prismatic slip, basal slip and {1 0 1 2} twinning in Mg and Mg-Zn binary alloys
| dc.contributor.author | Stanford, N. | |
| dc.contributor.author | Barnett, M.R. | |
| dc.date.issued | 2013 | |
| dc.description.abstract | Mg-Zn binary alloys with concentrations between 0 and 2.8 wt% Zn have been prepared and processed via hot rolling and annealing to produce specimens with a strong basal texture and a range of grain sizes. These have been deformed in three different strain paths: tension, compression and shear, in order to promote the dominance of prismatic slip, {101̄2} twinning and basal slip, respectively. This experimental data has been used to create Hall-Petch plots for each deformation mode. It has been found that the prismatic slip system has a plateau in its Hall-Petch plot above grain sizes of ∼30 μm, and solute softening of the prismatic system was found to be operative only at grain sizes above ∼50 μm. In compression, the stress required to activate twinning was found to be insensitive to Zn concentration. It is proposed that solute softening and anomalous Hall-Petch behaviour of prismatic slip be understood in terms of the dominance of the cross-slip stress in coarse grained materials. The effect of grain size on the relative strength of basal slip, prismatic slip and {101̄2} twinning is also discussed. | |
| dc.identifier.citation | International journal of plasticity, 2013; 47:165-181 | |
| dc.identifier.doi | 10.1016/j.ijplas.2013.01.012 | |
| dc.identifier.issn | 0749-6419 | |
| dc.identifier.orcid | Stanford, N. [0000-0002-2578-9795] [0000-0002-3298-4249] | |
| dc.identifier.uri | https://hdl.handle.net/11541.2/129065 | |
| dc.language.iso | en | |
| dc.publisher | Pergamon-Elsevier Science | |
| dc.relation.funding | Australian Research Council's Centre of Excellence for Design in Light Metals | |
| dc.rights | Copyright 2013 Elsevier | |
| dc.source.uri | https://doi.org/10.1016/j.ijplas.2013.01.012 | |
| dc.subject | magnesium | |
| dc.subject | deformation | |
| dc.subject | slip | |
| dc.subject | twinning | |
| dc.subject | solute strengthening | |
| dc.title | Solute strengthening of prismatic slip, basal slip and {1 0 1 2} twinning in Mg and Mg-Zn binary alloys | |
| dc.type | Journal article | |
| pubs.publication-status | Published | |
| ror.mmsid | 9916161510301831 |