About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
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Symposium
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12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
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Presentation Title |
Tensile Strengthening of a Mg Alloy Containing 25-vol% LPSO by Hot Extrusion Revealed by Neutron Diffraction |
Author(s) |
Stefanus Harjo, Wu Gong, Kazuya Aizawa, Takuro Kawasaki, Michiaki Yamasaki, Yoshihito Kawamura |
On-Site Speaker (Planned) |
Stefanus Harjo |
Abstract Scope |
Interesting mechanical properties changes were found in Mg97Zn1Y2 alloy containing about 25-vol% long-period stacking ordered phase (LPSO) in the HCP structured α matrix (αMg), by hot-extrusion. In situ neutron diffraction measurements during tensile loading were conducted on three Mg97Zn1Y2 alloys with different processes: as-casted, and after hot-extrusion at 623 K with extrusion ratios of 5.0 and 12.5, to elucidate the relation between the changes in microstructure by hot-extrusion with the changes in mechanical property. The yield strength of αMg increased by the hot-extrusion, but when the extrusion ratio increased the αMg yield strength ironically decreased. LPSO was found to be strengthened monotonically as the extrusion ratio increased. Detailed results of neutron diffraction will be discussed to explain the mechanical properties changes of Mg97Zn1Y2 alloy by hot-extrusion. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |