|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||Casting Characteristics of High Cerium Content Aluminum Alloys
||David Weiss, Orlando Rios, Zachary Sims, Scott McCall, Ryan Ott
|On-Site Speaker (Planned)
This paper compares the castability of near eutectic aluminum-cerium alloy system to the aluminum-silicon and aluminum-copper systems. The alloys are compared based on die filling capability, feeding characteristics, tolerance to casting defects and tendency to hot tear in both sand cast and permanent mold applications. Differential Scanning Calorimetry (DSC) analysis of the alloys systems is discussed. The castability ranking of the binary systems is as good or better than the aluminum-silicon system with some deterioration as additional alloying elements are added. In alloy systems that use cerium in combination with common aluminum alloying elements such as silicon, magnesium and/or copper, the casting characteristics are generally better than the aluminum-copper system. In general, production systems for melting, de-gassing and other processing of aluminum-silicon or aluminum-copper alloys can be used without modification for conventional casting of aluminum-cerium alloys.
||Planned: Light Metals