An investigation has been made with the TEM analysis on the precipitation process of granular bainite in 20Cr2Mo2V steel during tempe ring and the effect of every microstructure component on the strengthening.

• 本文对20Gr2Mo2V钢粒状贝氏体回火时的沉淀硬化过程进行了电镜观察,并分析了各强化的组织因素。