The degeneration of the heterogeneous nucleation for the large precipitates (Ti,Nb,V)(C,N) in ESR H13+Nb tool steel with low-MgO slagYou Xie, Guoguang Cheng, Lie Chen, Yandong Zhang and Qingzhong YanMetall. Res. Technol., 113 2 (2016) 206DOI: https://doi.org/10.1051/metal/2016002