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 |
The Effects of RE-RE Elements on the Phase Stability and Mechanical Properties of LPSO Phase in Mg-TM-RE-RE Quaternary Alloys |
Author(s) |
Ken-ichi Ikeda, Seiji Miura, Futoshi Miyakawa, Satoshi Takizawa, Toshiaki Horiuchi, Satoshi Minamoto, Takaomi Itoi |
On-Site Speaker (Planned) |
Ken-ichi Ikeda |
Abstract Scope |
LPSO (Long-Period Stacking Ordered) phases in various Mg-TM-RE (TM: transition metals, RE: rare-earth elements) ternary alloys have attracted attention for high strength Mg alloys. In this study, it is attempted to confirm the existence of stable phases around the LPSO to substitution behavior of Mg-Zn-RE LPSO phase. Furthermore, the mechanical properties of each phase in Mg-Zn-RE-RE alloys are investigated by indentation tests. Quaternary alloys were prepared by melting Mg, Zn and several RE metal blocks in a high-frequency furnace under argon atmosphere, and casting in a mild steel mold. It was found that almost no Ce substitutes for Y in Mg-Zn-Y-Ce based LPSO, while Dy substitutes for Y in several Mg-Zn-Y-Dy based LPSO. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |