| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology
|
| Presentation Title |
In-situ Analysis on Formation and Development of LPSO-like Nanostructures in Dilute MgYZn and MgGdZn Alloys |
| Author(s) |
Hiroshi Okuda, Michiaki Yamasaki, Yoshihito Kawamura |
| On-Site Speaker (Planned) |
Hiroshi Okuda |
| Abstract Scope |
Controlling formation of partial structures of long-period stacking ordered structure in dilute MgYZn alloys has been expected to be a prospective approach to strengthen Mg based materials without increasing specific weight. To understand the formation kinetics, however, in-situ approach is important, since phase transformation process in dilute MgYZn alloy is expected to be thermal history dependent, and many intermediate structures may appear. We performed in-situ small- and wide angle scattering measurements to examine nanostructural evolution during heat treatments. Mg100-x-yYxZny and Mg100-x-yGdxZny alloys have been heat up to annealing temperatures in-situ. Two well-defined clustering region was found for both alloys: clusters formed at lower temperatures once disappears before stable L12 clusters are formed at higher temperatures. Clusters at lower temperatures were reported to be less effective for strengthening. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Magnesium, Phase Transformations |