About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
|
Symposium
|
12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
|
Presentation Title |
Al11Mn4 Formation during the Solidification and Heat Treatment of AZ91 |
Author(s) |
Christopher M. Gourlay, Jingwei Xian, Liuqing Peng, Guang Zeng, Di Wang |
On-Site Speaker (Planned) |
Christopher M. Gourlay |
Abstract Scope |
Manganese is commonly added to Mg-Al-based alloys to ameliorate against the negative effects of impurity Fe on corrosion, causing various AlxMny intermetallic compounds to form during solidification and/or heat treatment. Here we explore the conditions under which Al11Mn4 forms during casting and solution heat treatment of high purity AZ91 and AZ80. The crystallography of Al11Mn4 nucleation and growth are studied by EBSD and shown to be strongly linked with the formation of Al8Mn5. The intermetallic microstructures are discussed with respect to thermodynamic calculations in Thermo-Calc and Pandat. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |