|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Cast Shop Technology
||Grain Refiner Settlement in the Launder System of Twin Roll Casting and Application of Electromagnetic Stirring
||Onur Birbasar, Vedat Topaloğlu, Murat Can Erdemir, Cemil Işıksaçan, Onur Meydanoglu, Mert Günyüz, Hatice Mollaoğlu Altuner, Murat Mustafa Dündar
|On-Site Speaker (Planned)
Al-Ti-B grain refiners are used as a grain refining agents in twin-roll casting. Although Al3Ti particles in the rod dissolve, principal inoculant of TiB2 remains undissolved and initiate heterogeneous nucleation. TiB2 particles with higher density than liquid Aluminum are in tendency to settle as they are released from the melting grain refiner rod. Experimental studies showed that Ti concentration varies at different depth of the liquid metal. The trajectories of the particles upon revealing from different position of the depth and their settlement were also simulated in FEA and experimental findings were confirmed. Well known method of electromagnetic agitation of liquid aluminum was implemented to the typical geometry of launder systems to keep the particles suspended. Samples gathered before and after activating the magnetic coil showed remarkable differences in their chemical and metallographic samples proving that, grain refiner particles can be kept in the stream without settlement and homogenously distributed.
||Planned: Light Metals