About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2026
|
| Presentation Title |
In-situ neutron diffraction study of the microstructure and deformation behavior in Mg97Y2Zn1 alloys with multimodal microstructure |
| Author(s) |
Kosho Horiguchi, Soya Nishimito, Stefanus Harjo, Gong Wu, Koji Hagihara, Toko Tokunaga, Michiaki Yamasaki |
| On-Site Speaker (Planned) |
Kosho Horiguchi |
| Abstract Scope |
In the last two decades, Mg-Y-Zn alloy consisting long-period stacking ordered (LPSO) phase has attracted great attention. When this alloy is subjected to plastic processing such as extrusion and rolling, a multimodal microstructure is formed, resulting in a wrought Mg alloy that combines strength and ductility. The multimodal structure refers to a heterogeneous structure that includes not only bimodal grain size but also bimodal crystal anisotropy. More specifically, extruded Mg97Y2Zn1 alloy consists of dynamically recrystallized (DRXed) αMg grains with random crystallographic orientation, and worked αMg and LPSO grains with strong fiber texture with <101 ̅0> orientation along the extrusion direction. Increasing the volume fraction of worked grains improves strength while maintaining some ductility, but the mechanism by which this balance between strength and ductility is achieved is unclear. In this study, therefore, stress partitioning behavior during deformation in multimodally grained Mg97Y2Zn1 alloys was investigated via in-situ neutron diffraction analysis. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Magnetic Materials, |