8Boyd G M. The propagation of fractus in mild steel plates [J] . Engineering, 1953, 175 (16) : 65-69.
9Song Y Y, Li X Y, Rong L J, et al. Formation of the reversed austenite during intercritical tempering in a Fe-13% Cr-4% Ni-Mo martensitic stainless steel [J]. Material Letters, 2010, 64 (13) : 1411-1414.