|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Late News Posters
||PP-27: Rapid Solidification Microstructures in Light Metal Alloys Produced by Melt Spinning
||Nicole Overman, Jens Darsell, Vineet Joshi
|On-Site Speaker (Planned)
Rapid solidification (RS) of light metal alloys has two primary objectives, to provide a mechanism for the formation of non-equilibrium microstructures and to improve strength-to-weight ratios exhibited by conventional processing techniques. Aluminum and magnesium represent ideal candidate materials for RS production due to their potential for solubility extension. The significant increases in compositional flexibility that can be obtained by rapid solidification are a direct result of the high cooling rates encountered. However, this added flexibility commonly leads to a loss of microstructural control. Large precipitates and microstructural gradients seen in rapidly solidified material can result in degradation of mechanical properties. This work presents the results of a microstructural analysis performed on melt spun Al and Mg-based alloys. Microstructural gradients in the produced flake materials were identified and investigated using electron microscopy techniques and correlated to processing conditions. Thermal stability was examined using differential scanning calorimetry.