ABSTRACT

The properties of materials have a strong influence on the performance and life of the device. Elastic properties, such as Young’s modulus, Poisson’s ratio and shear modulus, are directly related to the device performance. The quantitative investigation and prediction of microstructure evolution constitute possibly the broadest and the most characteristic discipline of computational materials science. One typical failure phenomenon caused by the evolution of microstructure is the pure tin allotropic transformation due to low temperature. The microstructure evolution of grain growth with pinning particles has been investigated through phase field simulations. The details of pinning effects of particles on grain growth with different particle size, number, and total particle volume are presented. Some intrinsic mechanisms of pinning effects are revealed. The pinning effect not only depends on the particle configurations but also rely on the grain boundary energy.