About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Ultrafine-grained and Heterostructured Materials (UFGH XI)
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Presentation Title |
Effect of High-pressure Torsion on Corrosion Behavior of a Magnesium ZK60 Alloy in 0.1M NaCl |
Author(s) |
Hamidreza Torbati-Sarraf, Seyed Alireza Torbati Sarraf, Terence G. Langdon |
On-Site Speaker (Planned) |
Hamidreza Torbati-Sarraf |
Abstract Scope |
This study aimed to investigate the corrosion behavior of a ZK60 magnesium alloy processed by various turn of High-pressure torsion (HPT). Extruded samples were processed through HPT up to 20 turns and the microstructures were evaluated using Electron back-scatter diffraction (EBSD). HPT processed samples were exposed to 0.1M NaCl solution and electrochemical responses were examined using polarization, EIS and hydrogen evolution tests. By increasing the numbers of HPT turns, more homogeneity with finer average grain sizes accompanied by the evolution of a nobler texture leads to an improved corrosion performance. Post-corrosion microscopic observations revealed improved protective layers after higher turns of HPT. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume |