|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Solidification Processing of Light Metals and Alloys: An MPMD Symposium in Honor of David StJohn
||Revealing the Heterogeneous Nucleation and Growth Behaviour of Grains in Inoculated Aluminium Alloys during Solidification
||Yijiang Xu, Ragnvald Mathiesen, Daniele Casari, Yanjun Li
|On-Site Speaker (Planned)
An in-situ X-ray radiographic study on the grain nucleation and grain growth of inoculated Al-10Cu and Al-20Cu alloys during isothermal melt solidification and directional solidification conditions with constant cooling rates has been carried out. The influence of addition level of inoculation particles, cooling rates, and temperature gradient on the nucleation rate and growth kinetics of grains have been quantitatively studied. The deterministic nature of the heterogeneous nucleation of aluminium grain on inoculant particles is revealed. Numeric microstructure models have been developed to simulate the nucleation and growth behavior of aluminum grains and a good agreement between the experimental results and simulation results has been achieved.