【摘要】 Fe-C-Mn系双相钢具有优良的综合力学性能和成形工艺性能,其原因在于它具有艮好的双相结构。占一定百分含量的马氏体(强化相)使之具有相应高的强度级别,而基底铁素体则保证具有优良的塑性。本文就0.04～0.1%C、2%Mn双相钢经一系列"临界加热"处理后的铁素体与马氏体形态、分布、亚结构以及两相界面微区化学成分进行了综合观察和分析,初步揭示了组织和性能的关系。更多还原

【Abstract】 Fe-C-Mn dual-phase steel, having structure of F/M dual-phase, has shown good combinatorial mechanical properties and superior formability. It’s strength and ductility are seperately dependent on the percentage of martensite and basic ferrite. A study has been made of the shape、distribution and substructure of martensite and composition of F/M interface in 0.04～0.1%C、2% Mn dual-phase steel at diffrent "intercritical heat" treatment. Relationship between microstructure and mechanical properties has been indicated.更多还原