About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
Presentation Title |
K-17: Transient Texture Evolution During Friction Stir Processing of a Mg Alloy Revealed by In-situ Neutron Diffraction |
Author(s) |
Yuan Li, Ke An, Zhili Feng, Hahn Choo |
On-Site Speaker (Planned) |
Yuan Li |
Abstract Scope |
In order to gain fundamental understanding of dynamic recrystallization processes during friction stir processing (FSP) of Mg alloys, we investigated the transient texture evolution using in-situ, real-time neutron diffraction (ND). The texture evolution during FSP of AZ31B Mg alloy plates was studied at two extreme thermo-mechanical input conditions (in terms of Zener-Hollomon parameter, Z), namely low Z (1200 rpm, 0.1 mm/s) and high Z (300 rpm, 1.1 mm/s) conditions. The variations in the onset and extent of characteristic grain rotations during FSP as a function of location from the FSP tool pin and the Zener-Hollomon parameter will be presented. In addition, we will present the evolution of texture as a function of time during the processing using reconstructed pole figures measured in situ using ND. Finally, we will discuss the role of Z and material flow on the texture development mechanisms during FSP. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |