Effect of CaF2 on the contact angle of refining powder on NiCrMoV steel at high temperature using Image Analysis and Statistical Package for the Social Sciences software

Steel melting refining powders always play an important role in reducing steel inclusions. These types of powders can be used in steel melting production processes for all types of low-alloy and high-alloy steels. The compounds of these powders are generally CaO-Al2O3-SiO2. Adding CaF2 values gives special properties to this type of refining powders. In this study, four types of refining powders with 3 to 6% of CaF2 were melted in induction furnace under high temperature and the surface of NiCrMoV low alloy steel was impregnated by melting these powders and its contact angle on the steel surface using Image Analysis (IA) and Statistical Package for the Social Sciences (SPSS) was analyzed. The results showed increasing the percentage CaF2 about %6 in refining powder of CaO-Al2O3-SiO2 reduces the connecting angle of the refining powder on NiCrMoV steel about 60%.