镍基合金粗化过程中共格沉淀相的形貌演变

Morphology Evolution of Coherent Precipitate in Nickel-based Alloy During Coarsening Process

基于微观相场模型,研究了镍基合金粗化过程中沉淀颗粒在弹性应变能作用下的微观组织变化。结果表明,镍基合金在粗化过程中,弹性应变能的大小通过改变颗粒中心沿[10]方向和[11]方向的溶质浓度分布,影响共格沉淀相的形貌变化。

The microstructure changes of precipitates derived from elastic strain energy in nickel-based alloy during coarsening process were investigated basing on microscopic phase-field model. The results show that the values of the elastic strain energy affect the morphology evolution of the coherent precipitate by changing the solute concentration distribution of the particle center along the [10] and [11] directions during the coarsening process of the nickel-base alloy.