“…In grain oriented electrical steel sheets, MnS, MnSe, etc. are dispersed as pinning particles, and the particle size of MnS and MnSe [36][37][38] is several hundreds nm to several thousands nm, which is the same size as the spheroidized cementite observed in this experiment. Therefore, although the spheroidized cementite is coarse in comparison with the nano-precipitate particles such as Nb(C,N), the dissolution of the spheroidized cementite causes a considerable decrease in pinning force, and the possibility that this promotes abnormal grain growth is suggested.…”