| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2023
|
| Presentation Title |
E-27: Strain-localized Deformation Banding during Tensile Deformation of Pre-compressed AZ31 Mg Alloy |
| Author(s) |
Jongbin Go, Myeong-heom Park, Si Gao, Nobuhiro Tsuji |
| On-Site Speaker (Planned) |
Jongbin Go |
| Abstract Scope |
Deformation twinning and detwinning are important deformation mechanisms in addition to the basal <a> slip in HCP Mg alloys. It has been reported that deformation twinning or detwinning in Mg alloys can cause macroscopic inhomogeneous deformation. However, the effect of detwinning on the deformation behavior in Mg alloys has been much less reported. In this study, a hot-rolled and annealed AZ31 (Mg-3Al-0.5Zn-0.3Mn, wt.%) plate with a strong {0002}//ND (normal direction) texture was compressed along the transverse direction (TD) to have ~50% area fraction of deformation twins, and then subjected to tensile test combined with digital image correlation (DIC). The DIC analysis revealed that strain-localized deformation bands repeatedly formed, propagated and disappeared in the gage part of the specimens during tensile deformation, which has not been reported before. Microstructural changes corresponding to such deformation banding were characterized by SEM-EBSD and other techniques, and underlying mechanisms of the deformation banding are discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Mechanical Properties, |