8Bush M E, Kelly P M. Strengthening mechanisms in bainitic steel[J]. Acta Met, 1971, 19(12) : 1363 - 1371.
9Mangonon P L. Effect of alloying element on the microstructure and properties of a not-rolled low carbon bainitic steel[J]. Metall Trans A, 1976,9(10) : 1389 - 1394.