It was shown that the secondary hardening of bainite is similar to martensite, mainly formed by precipitation of fine dispersed carbides such as Mo_2C, V_4C_3, NbC, etc.

• 实验结果表明,贝氏体的二次硬化机制和马氏体一样,主要是由Mo_2C,V_4C_3,NbC等细小弥散的合金碳化物析出造成的。