Abstract

In this paper, the interaction between the microstructure and the texture evolution and the flow behavior of polycrystalline Nickel 200 is studied. Particularly, the effect of the initial orientation and the texture evolution during the uniaxial compressive deformation process is examined. From the experimental investigations, an attempt is made to model the flow behavior of the polycrystalline Nickel 200. For the finite element simulations, idealized random grains are generated by Voronoi tessellations to simulate the polycrystalline Nickel 200. A crystal plasticity based material model for polycrystalline Nickel 200 undergoing finite deformations is presented. The simulated deformation behavior is compared with and validated by experimental data.

中文翻译：

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多晶镍的显微组织研究和数值模拟

摘要

本文研究了多晶镍200的微观结构与织构演变以及流动行为之间的相互作用。特别是，检查了单轴压缩变形过程中初始方向和纹理演变的影响。通过实验研究，尝试对多晶镍200的流动行为进行建模。对于有限元模拟，通过Voronoi镶嵌生成理想化的随机晶粒，以模拟多晶镍200。基于晶体塑性的多晶镍材料模型介绍了200个经历有限变形的地方。将模拟变形行为与实验数据进行比较并通过实验数据进行验证。