|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||Aluminum In-situ Formed, Low Cost, Aluminum-silicon Nano Composite Materials
||Peter Guba, Jerry Sokolowski, Al Conle , Andrzej Sobiesiak , Adam Gesing, Subodh K. Das
|On-Site Speaker (Planned)
||Subodh K. Das
Aluminum-Silicon (Al-Si) alloys are the “bread-and-butter” of the aluminum foundry industry being cast at an annual rate of over 2 million tonnes/year in North America for use mainly in transportation. Coarse microstructure of these alloys limits their specific mechanical properties and consequently their potential for vehicle lightweighting.
We report on a new family of cast Al-Si alloys producing in-situ formed nanocomposites of up to 25 vol% sub-micron equiaxed silicon particles in aluminum matrix which can be ductile, or reinforced by nano-scale spinodal constituents.
The nano scale microstructure of these new materials gives them significantly improved strength, hardness, and wear resistance while retaining adequate toughness and ductility for applications in the transportation applications.
These materials can be produced by conventional casting technologies such as continuous strip casting, or high-pressure die-casting from conventional low-cost aluminum and silicon melts.
||Planned: Light Metals