【摘要】 38CrSiA,30CrMnSiA 钢于360～380℃奥氏体等温时,形成了具有特殊形态的树叉状贝氏体。与同强度下的马氏体回火组织比较,强韧水平提高一倍;本文对树叉状贝氏体的形成与强韧机制做了初步讨论。更多还原

【Abstract】 The branched bainite formed in 38crsiA and 30crMnsiA steels when austemper- ed at 360-380 ℃,The impact values are doubled as compared with the quenched and tempered state at the same strength level,The morphology of branched bainite and the tough-hardening mechanism have been discussed.更多还原