In-Situ Observation of Steel/Slag/Inclusion Interaction by Means of High-Temperature Confocal Scanning Laser Microscopy

Non-metallic inclusions (NMIs) in steels have been the focus of various experimental studies due to their detrimental character. While isolated processes, such as agglomeration or dissolution, well investigated, holistic in-situ views with high-temperature confocal scanning laser microscopy (HT-CSLM) rare. In this work a novel and suitable method is presented simultaneously observe agglomeration, movement, detachment, dissolution non-metallic by combined melting steel slag dual-crucible approach. Therefore, different steel/slag combinations were tested. It shown that, transparent that does not become tarnished ions stemming from steel, steel’s surface are observable. Furthermore, technological limitations discussed, including restrictions regarding point certain combinations.