本文用弹塑性大应变轴对称有限元程序,较详细地分析了12CrMo钢F+M双相组织的显微结构(马氏体体积分数,尺寸,基体相)变化时两相内局部及平均应力应变分布形态,特别是对两相材料微观断裂机制有重要作用的水静应力和最大剪应力的分布与变化.由计算的应力应变分布形态所展示的亚微观断裂性质与实验观察相符.
By use of a computer program, the finite element method has been employed to calculated the effect of particle size, matrix and volume fraction of phases on the stress and strain distributions in 12CrMo ferrite-martensite steel. In particular, the distributions of hydrostatic stress and maximum shear stress in each phase are given. The microscopic fracture mechanism revealed by these stress distributions coincides with experimental observations.
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| [7] | Sundstroem B O. Mater Sci Eng 1973 |
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