2019 Pittsburgh AISTech

Effect of Physical State of Non-Metallic Inclusions on the Accumulation Within Magnesia-Stabilized Zirconia Foam Filters (Room 414)

07 May 19
10:00 AM - 10:30 AM

Tracks: Specialty Alloy & Foundry

Speaker(s): Soumava Chakraborty, Postdoctoral Fellow, Missouri University of Science and Technology ; Ronald O'Malley, Missouri University of Science and Technology; Laura Bartlett, Missouri University of Science and Technology; Logan Huddleston, Peaslee Steel Manufacturing Research Center, Department of Materials Science and Engineering

Ceramic foam filters are routinely used in steel foundries to remove inclusions. Experiments were carried out to filter both aluminum and silicomanganese deoxidized AISI 316 stainless steel utilizing 10 ppi magnesia-stabilized zirconia foam filters to determine the attachment mechanisms of solid versus liquid inclusions. The results showed removal of inclusions for both experiments. Samples were prepared directly from the filters to understand the inclusion attachment mechanism during deep bed filtration and analyzed using cathodoluminescence and elemental mapping. A scanning electron microscope with automated feature analysis was utilized to evaluate the change in inclusion distribution through the thickness of the filter.