| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
K-1: Effect of Mg on Cryogenic Impact Toughness of Al-Mg Alloys via Cryogenic Charpy Impact Tests |
| Author(s) |
Ji-Woon Lee, Soon-JIk Hong, Gian Song, Jongun Moon, Junhee Han, Hyo-Seop Kim |
| On-Site Speaker (Planned) |
Ji-Woon Lee |
| Abstract Scope |
In this study, the Mg and temperature effects on cryogenic impact toughness of Al-Mg alloys are investigated. Cryogenic Charpy impact tests are conducted for several Al-Mg alloys: AA5083, Al-6Mg, Al-8Mg, and Al-8.5Mg at the temperature range between – 196 to 100 ˚C. In all Al-Mg alloys, the impact toughness is improved at higher temperatures. Beyond the Mg content of 6 wt%, the impact toughness of Al-Mg alloys decreases with increasing Mg. The planar anisotropyis low in Al-Mg alloys of higher impact toughness. The largest amounts of coarse inclusions are present in the AA5083, providing favorable cracking sites and thereby its poor impact toughness. The grain size and intergranular Mg segregation do not appear to influence the toughness of Al-Mg alloys. Weaker texture in the most ductile Al-6Mg appears beneficial to gain more homogeneous deformation and lower Δr. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Mechanical Properties |