3Brien 0 J M, Hosford W F. Spheroidization cycles for medium carbon steels [J]. Metal. Mater. Trans. , 2002, 33A (4) :1255-1261.
4Verhoeven J D. The role of the divorced euteetoid transformation in the spheroidization of 52100 steel [J]. Metall. and Mater. Trans. A, 2000, 31 (10) : 2431-2438.
5Kar R J, Horn R M, Zackay V F. The effect of heat treatment on microstructure and mechanical properties in 52100 steel [ J ]. Metallurgical Transactions A, 1979, 10 ( 11 ) : 1711-1717.
6崔昆.合金钢及有色金属[M].北京:机械工业出版社,1981.
7Verhoeven J D. The Role of the Divorced Eutectoid ransfornmtion in the Spheroidizalion of 52100 Steel [ J ]. Metall. Mater. Trans, 2000, 31:2431-2438.