Static recrystallization simulations starting from predicted deformation microstructure by coupling multi-phase-field method and finite element method based on crystal plasticity
Static recrystallization simulations starting from predicted deformation microstructure by coupling multi-phase-field method and finite element method based on crystal plasticity
复制标题
DOI：
10.1016/j.ijmecsci.2009.09.037
复制
发表时间：
2010-02
影响因子：
7.3
通讯作者：
T. Takaki;Y. Tomita
中科院分区：
文献类型：
--
作者：
T. Takaki;Y. Tomita
考虑到多晶金属塑性变形的不均匀性，我们建立了一个再结晶的数值模型。本文采用基于晶体塑性理论的有限元法模拟了多晶金属的塑性变形过程，采用多相场法模拟了再结晶过程中的微观组织演变。在初次再结晶模拟中，形核是最困难的问题。在本模型中，从晶体塑性有限元模拟的结果预测的变形微观结构，并通过引入晶界能和流动性的取向差依赖性，使异常晶粒生长，实现自发成核。作为在三个不同的压缩应变下的模拟结果，它被证实，根据变形量的一次再结晶模拟，并考虑到多晶金属的塑性变形的不均匀性，可以成功地执行通过采用所提出的模型。
We have developed a numerical model of recrystallization taking the inhomogeneities of the plastic deformation of a polycrystalline metal into account. Here, the plastic deformation of the polycrystalline metal is simulated by the finite element method based on crystal plasticity theory and the microstructure evolution during recrystallization is simulated by the multi-phase-field method. In primary recrystallization simulations, nucleation is the most difficult problem. In the present model, the deformation microstructure is predicted from the results of a crystal plasticity finite element simulation, and spontaneous nucleation is achieved through abnormal grain growth that is enabled by introducing the misorientation dependences of grain boundary energy and mobility. As a result of simulations under three different compression strains, it is confirmed that primary recrystallization simulations depending on the amount of deformation and taking the inhomogeneities of the plastic deformation of a polycrystalline metal into consideration can be successfully performed by employing the proposed model.