About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
|
Symposium
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12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
|
Presentation Title |
Effect of Caliber Rolling on Microstructure and Mechanical Properties of Wrought Mg-Bi Based Alloy |
Author(s) |
Hui Yu |
On-Site Speaker (Planned) |
Hui Yu |
Abstract Scope |
In this study, a Mg-1.32Bi-0.72Ca (BX11) alloy having bimodal grain structure was successfully fabricated by a new processing route of combining extrusion and 3 pass caliber rolling. This novel processing (E-CRed) demonstrates a necklace-like grain structure with ultrafine grains formed around the microscale deformed grains, which is remarkably different from the uniform microstructure of the as-extruded alloy. In addition, the E-CRed BX11 alloy exhibits strong basal texture which is mainly original from the large deformed grains. Furthermore, the E-CRed BX11 alloy represents excellent comprehensive mechanical properties, with an ultra-high yield strength of 351 MPa and a good elongation to failure of 13.2%. The significant strength improvement can be mainly attributed to the grain refinement and much stronger basal texture compared with the as-extruded sample. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |