| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
The Microstructure and Hardness of Zn-3(wt.%)Mg Powders Processed via High Pressure Torsion |
| Author(s) |
Tanzilur Rahman, Burak Dikici, Hakan Yılmazer, Kaveh Edalati, Hendra Hermawan, Carl J. Boehlert |
| On-Site Speaker (Planned) |
Carl J. Boehlert |
| Abstract Scope |
Pure zinc (Zn) and magnesium (Mg) powders, in a mass ratio of Zn-3Mg, were high-pressure torsion (HPT) processed using a pressure of 6.0 GPa for 1, 5, 10, 20, and 30 revolutions at room temperature. In order to understand the effects of preconsolidation on the resulting microstructure and hardness, HPT processing was performed on lose powders placed in the die (case 1) and also on a compact (case 2), where the powders were first pressed together prior to HPT processing. The processed samples were characterized by X-ray diffraction, scanning electron microscopy, electron backscattered diffraction, and Vickers microhardness. In both cases, the resulting microstructures contained nanoscale grains and the resulting Hv values were greater than those of both pure Zn and pure Mg. For case 1, the hardness values did not change as a function of the sample radius. The results were compared to HPT processed Zn-Mg alloys and hybrids. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Powder Materials, Mechanical Properties |