| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2020
|
| Presentation Title |
Al8Mn5 Particle Clustering on Oxide Films in Liquid AZ80 Magnesium Alloys |
| Author(s) |
Liuqing Peng, Te-Cheng Su, Kazuhiro Nogita, Hideyuki Yasuda, Christopher M. Gourlay |
| On-Site Speaker (Planned) |
Christopher M. Gourlay |
| Abstract Scope |
Al8Mn5 particles are important for ensuring adequate corrosion resistance of Mg-Al-based alloys. However, excessive Al8Mn5 formation above the Mg liquidus temperature can lead to sludge formation, and the clustering of Al8Mn5 particles on oxide films can generate deleterious casting defects, particularly in direct chill cast ingots. Here, we use real- time synchrotron X-ray radiography to study Al8Mn5 particle settling, the formation of a sludge layer, and the mechanism of Al8Mn5 clustering on oxides in AZ80 containing two Fe levels. It is shown that settling Al8Mn5 can become trapped in entrained oxide and continue to grow, creating large Al8Mn5 clusters |
| Proceedings Inclusion? |
Planned: |