| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2023
|
| Presentation Title |
E-18: Flammability Resistant Magnesium Alloys Processed by Equal Channel Angular Pressing |
| Author(s) |
Stanislav Sasek, Jitka Stráská, Peter Minárik, Robert Král, Jozef Veselý, Jiří Kubásek |
| On-Site Speaker (Planned) |
Stanislav Sasek |
| Abstract Scope |
Two magnesium alloys (Mg-2Y-2Gd-1Ca, Mg-2Y-2Nd-1Ca) were designed with an emphasis on high flammability resistance while maintaining solid mechanical properties. Both alloys were processed by equal channel angular pressing (ECAP) to achieve finer microstructure and enhanced strength.
Both alloys are characterized by exceptional high ignition temperature caused by a structurally stable oxide layer. Processing by ECAP led to a homogenous ultrafine-grained microstructure with mean grain size ~ 1 µm. TEM analysis revealed uniform distribution of submicrometer secondary phases particles.
Deformation tests and microhardness measurement proved that developed and analysed microstructural condition resulted in solid mechanical properties with yield strength exceeding 250 MPa in tension and compression. However, the segregation of calcium at the grain boundaries led to a significant reduction in ductility. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Mechanical Properties, |