Evaluating tendency of freckle formation for electro-slag remelting 20SiMn2MoV ingots by experiments and simulationYang Zhang, Weiqing Chen, Lie Chen, Qingzhong Yan and Yandong ZhangMetall. Res. Technol., 111 4 (2014) 259-269DOI: https://doi.org/10.1051/metal/2014038