About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Lightweight Composites, Materials & Alloys
|
| Presentation Title |
Evaluation of Microstructure and Mechanical Properties of Al-B Alloys with Varying Fe and Rare Earth Additions |
| Author(s) |
Hyo-Sang Yoo, Yong-Ho Kim, Byeong-Kwon Lee, Eun-Chan Ko, Hyeon-Taek Son |
| On-Site Speaker (Planned) |
Hyo-Sang Yoo |
| Abstract Scope |
The development of lightweight materials for battery and electronic component cases in eco-friendly vehicles is gaining attention to improve energy efficiency and performance. Aluminum alloys are widely used due to their excellent electrical conductivity, low cost, good formability, and low density. However, simultaneously achieving high strength and high conductivity remains a challenge. Boron (B) enhances conductivity by reducing the detrimental effects of impurities and acts as a grain refiner during solidification. Iron (Fe) improves strength but significantly lowers conductivity when added above 0.5 wt.%. In this study, the effects of Fe and rare earth (RE) element additions on the microstructure and mechanical properties of Al-B alloys were investigated. Alloys were fabricated by gravity casting using a high-frequency induction furnace and then hot-extruded at an extrusion ratio of 40:1. Microstructures were analyzed by SEM and XRD, tensile properties were measured, and electrical conductivity was evaluated using the eddy current method. |