| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ultrafine-grained and Heterostructured Materials (UFGH XI)
|
| Presentation Title |
Microstructures and Mechanical Properties of Supersaturated Al-Mg Alloys Produced by Powder Consolidation using High-pressure Torsion |
| Author(s) |
Yongpeng Tang, Takahiro Masuda, Shoichi Hirosawa, Zenji Horita, Yuji Higo, Yoshinori Tange, Yasuo Ohishi |
| On-Site Speaker (Planned) |
Yongpeng Tang |
| Abstract Scope |
Mixtures of high-purity elemental powders of Al with an Mg content of 20 wt% were consolidated to fabricate bulk supersaturated Al-Mg alloys by high-pressure torsion (HPT). Their microstructures and mechanical properties were examined by X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM), Vickers microhardness test and tensile test. In this study, in-situ experiment was also conducted using high-energy X rays at SPring-8 in JASRI (Japan Synchrotron Radiation Research Institute) to examine the aging behavior. Hardness was improved significantly to 295HV with straining by HPT processing for 60 revolutions. Furthermore, age-hardenability of the supersaturaed Al-Mg alloy was investigated while aging at a low temperature of 343 K which is in the region below the spinodal line. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume |