About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing of Metals: Applications of Solidification Fundamentals
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Presentation Title |
Solidification-Microstructure Relationship Study of Single-track Laser Scanned Mg-RE Alloys |
Author(s) |
Wan Ye, Aijun Huang, Yuman Zhu, Robert Wilson, Kun Yang |
On-Site Speaker (Planned) |
Wan Ye |
Abstract Scope |
Magnesium (Mg) is the lightest structural metal and its high specific strength makes it competitive in weight-sensitive applications. It is difficult to manufacture complex-shaped parts with internal structures via conventional manufacturing. Hence, additive manufacturing (AM), a net-shape technology with high cooling rate nature, became an attractive fabrication method for Mg alloys. While there has been some work in additive manufactured Mg alloys, the solidification-microstructure-mechanical property relationship is still incomplete.
In this work, single-tracked laser scans with various linear energy inputs were applied to Mg-RE (rare earth) alloys. It showed that different scanning parameters and RE additions can both tune the grain structures to columnar or equiaxed. Besides, a refined cellular structure and cellular structure morphology transition could be observed. The work aims at understanding the formation mechanisms of the different grain structures and cellular structures and illustrating the effect of both scanning parameters and RE additions. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Magnesium, Solidification |