About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
|
Symposium
|
12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
|
Presentation Title |
How Useful is Grain Refinement for Improving the Ductility of Magnesium Alloys? |
Author(s) |
Matthew Robert Barnett |
On-Site Speaker (Planned) |
Matthew Robert Barnett |
Abstract Scope |
This presentation discusses the failure of magnesium alloy AZ31 during tension, compression and bending. The aim is to determine how useful grain refinement is for extending the room temperature ductility. The ductility of a series of test samples is examined using X-ray microtomography. Using this approach enabled us to characterize void nucleation, growth and linkage during tensile loading. We conclude the impact of grain size on void growth is the critical factor. Voids grow faster in coarse grained samples and this hastens failure. The mechanism seems unique to tension and so some statements can be made regarding the impact of grain size on other deformations. The extent to which the conclusions can be generalized is also considered. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |