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基于弹性作用应力引起的非平衡晶界偏聚理论模型和动力学方程,在Misra和Shinoda的试验结果基础上计算多晶体材料钢的晶界区弹性模量。对郑磊的文章参数选择进行修正并重新计算,求得883K下2.6Ni-CrMo-V钢的晶界区拉伸弹性模量为3.50MPa;同时基于非平衡晶界偏聚和贫化的模型,分别计算773K下某钢晶界区的拉伸和压缩弹性模量,所得结果为1.395和1.076MPa,与2.6Ni-Cr-Mo-V钢的计算结果在数量级上是一致的,进一步证明非平衡晶界偏聚和贫化的理论模型作为晶界区弹性模量的计算可靠性。
Based on the theoretical model and kinetic equation of non-equilibrium grain boundary segregation induced by elastic stress, the grain boundary elastic modulus of polycrystalline material steel was calculated based on the experimental results of Misra and Shinoda. The parameters of Zheng Lei’s article were corrected and recalculated. The tensile modulus at grain boundary of 2.6Ni-CrMo-V steel at 883K was 3.50MPa. Based on the model of non-equilibrium grain boundary segregation and depletion , Calculated the tensile and compressive elastic modulus of a steel grain boundary region at 773K respectively, and the obtained results are 1.395 and 1.076MPa, which are in the same order of magnitude as that of the 2.6Ni-Cr-Mo-V steel. It is further proved that the non- The theoretical model of balanced grain boundary segregation and depletion is used as the computational reliability of the elastic modulus in the grain boundary region.