About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Development in Light Weight Alloys and Composites
|
Presentation Title |
Development of Hierarchical Aluminum-based Metal Matrix Composites Using Friction Extrusion |
Author(s) |
Rajib Kalsar, Benjamin Schuessler, Xiaolong Ma, Jens Darsell, Tianhao Wang, Sridhar Niverty, Lei Li, Ayoub Soulami, Vineet Joshi |
On-Site Speaker (Planned) |
Rajib Kalsar |
Abstract Scope |
Friction extrusion process is a newly developed solid phase processing method and emerging as a potential energy efficient processing method for microstructural modifications to improve various properties, such as mechanical, corrosion and functional. Friction extrusion process has been utilized to develop hierarchical metal matrix composite (MMC) microstructures in Al alloys to improve strength and ductility simultaneously. Ceramic particles (Al2O3) with 5 - 25 vol% were extruded in the form of 5 mm diameter rod to get Al-MMC microstructures. A unique hierarchical composite microstructure is achieved using the process. Quantitative microstructural characterizations were performed using scanning electron microscopy (SEM), back-scatter electron microscopy (EBSD) and transmission electron microscopy (TEM) to understand the distribution of the ceramic particles in the Al-matrix as well as ceramic particle and matrix interactions. Mechanical properties of MMCs were evaluated by performing tensile tests of the extruded rods. |