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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。
The deformation and fracture process of ferrite martensite in B2F and 20Cr steel were studied by scanning electron microscopy (SEM). The fracture and fracture process of B2F and 20Cr ferrite martensite were analyzed. The deformation and fracture mechanism Put forward the view. At the same time, the mechanism of variation of mechanical properties is given a mechanistic explanation.