About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Lightweight Composites, Materials, and Alloys
|
| Presentation Title |
Characterization of Al – Mg alloys with Cerium, Silicon, and Niobium Diboride Reinforcement for Aerospace Structural Applications |
| Author(s) |
Ray Lionel Rivera-Brignoni, Norman Alexander Burgos-León, Oscar Marcelo Suárez |
| On-Site Speaker (Planned) |
Ray Lionel Rivera-Brignoni |
| Abstract Scope |
Lightweight aluminum alloys are among the most used materials in aerospace applications due to their high corrosion resistance, strength, and ductility. Unfortunately, these alloys have a high fabrication cost to achieve optimum mechanical properties. Ce, being an abundant rare earth element and in low demand, could be a lower-cost alternative. However, it lacks research on being a primary alloying element. Al-Si and Al-Ce show promise due to their high-temperature castability and corrosion minimization. The present research seeks to develop such a methodology and characterize these aluminum-magnesium-based alloys reinforced with niobium diboride, cerium diboride, and silicon diboride nanoparticles. Adding these nanoparticles as reinforcement can improve the material’s tensile strength, oxidation resistance, operating temperatures, and wear resistance. Characterization methods include tensile tests, microhardness, EDS, Backscatter and SEM mapping. Preliminary results show an increase of Vickers microhardness and tensile strength with an improvement of up to 50% compared to unreinforced alloys. |