The relatively large silicon concentration in many TRIP-assisted steels causes the formation of hard, adherent oxides making it difficult to implement surface cleaning prior to hot-rolling. This results in a poor surface finish. The stronger adhesion comes from that fact that the silicon reacts to form Fayalite (Fe2SiO4), which is more coherent with the steel substrate than FeO.
Crystal structure of Fayalite |
|
Crystal structure of Fayalite |
Crystal structure of Fayalite |
Crystal structure of Fayalite |
Crystal structure of Fayalite |