【摘要】 通过扫描电镜在拉伸状态下动态观察断裂过程,和对应分析断口形貌与组织,对B2F、20Cr钢铁素体马氏体双相组织的形变与断裂过程进行了研究,并对其形变断裂机理提出了看法。同时对机械性能的变异规律给予了机理上的解释。更多还原

【Abstract】 By the dynamic observation of the fracture process with SEM under tensile condition and the analysis of the morphology and structure of the fracture, the deformation and fracture process of the ferrite/martensite dual phase in B2F, 20Cr steels were studied, and some viewpoints on the mechanism of deformation fracture are suggested. An explanation about the mechanism of the regularity of the mechanical properties can be given.更多还原