| Author | Search for: Lee, S.Y.1; Search for: Gharghouri, M.A.1; Search for: Root, J.H.1 |
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| Affiliation | - National Research Council of Canada. NRC Canadian Neutron Beam Centre
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| Format | Text, Article |
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| Conference | Magnesium Technology 2011 - TMS 2011 Annual Meeting and Exhibition, 27 February 2011 through 3 March 2011, San Diego, CA |
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| Subject | Al alloys; Compressive loading; Cyclic loadings; Deformation mechanism; Deformation twinning; Detwinning; Diffraction peaks; Elastic-plastic transition; Grain orientation; In-situ; In-situ neutron diffraction; Nonlinear behavior; Plastic deformation behavior; Tensile loading; Exhibitions; Extrusion; Magnesium; Magnesium alloys; Neutron diffraction; Poles; Precipitation (chemical); Tensile strength; Twinning; Unloading; Plastic deformation |
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| Abstract | In-situ neutron diffraction has been employed to study the deformation mechanisms in a precipitation-hardened and extruded Mg-8.5wt.% Al alloy subjected to compression followed by reverse tension. The starting texture is such that the basal poles of most grains are oriented normal to the extrusion axis and a small portion of grains are oriented with the basal pole parallel to the extrusion axis. Diffraction peak intensities for several grain orientations monitored in-situ during deformation show that deformation twinning plays an important role in the elastic-plastic transition and subsequent plastic deformation behavior. Significant non-linear behavior is observed during unloading after compression and appears to be due to detwinning. This effect is much stronger after compressive loading than after tensile loading. |
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| Publication date | 2011 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21271552 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 8bbdfe75-0a81-4dd9-a8f0-9cd90e47df52 |
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| Record created | 2014-03-24 |
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| Record modified | 2020-04-21 |
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