| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2020
|
| Presentation Title |
Mapping Anisotropy and Triaxiality Effects in Magnesium Alloys |
| Author(s) |
Padmeya P Indurkar, Shahmeer Baweja, Robert Perez, Amol Vuppuluri, Shailendra P. Joshi |
| On-Site Speaker (Planned) |
Shailendra P. Joshi |
| Abstract Scope |
Microstructure, material properties and macroscopic stress state closely interact in determining the strength and fracture resistance of ductile metals. While a fair understanding of the microstructure-stress interaction on strength, deformation stability and damage has been achieved for common engineering alloys, the same is not true for Mg alloys. A fundamental understanding of how the net plastic anisotropy influences the macroscopic load-deformation characteristics and deformation stability will potentially aid the development of high-performance Mg alloys. A concerted multi-scale computational effort is essential in providing a deeper understanding of the deformation micromechanics of Mg alloys. In this talk, we present the relations between the loading states (principal and off-axis), microstructure (texture, plastic anisotropy, deformation mechanisms) and macroscopic responses including deformation stability through crystal plasticity (HXP) modeling and simulation. We also assess a reduced-order model of Mg plasticity against HXP observations to enable the development of guidelines for damage-tolerant materials design. |
| Proceedings Inclusion? |
Planned: |