Micromechanical analysis of dislocation networks at dynamic ɣ/ɣ’ interfaces (C08#)

动态 É£/É£â 界面位错网络的微机械分析 (C08

• 批准号: 459867372
• 金额: --
• 依托单位: Interdisciplinary Centre for Advanced Materials Simulations
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2021
• 资助国家: 德国
• 起止时间: 2020-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/459867372?language=en
• 关键词: Micromechanical; analysis; dislocation; networks; dynamic

Project C8 aims at answering the questions if experimentally observed grooves and ledges around ɣ’ particles is an effect mainly driven by cooling or if it is a dynamic effect during deformation as well as the effect of the misfit dislocation network on rafting of ɣ’ particles. This is achieved through a simplified model for dislocation climb and dynamic coupling of discrete dislocation dynamics with the phase field method. Parametrization and calibration is achieved using previous works as well as a direct comparison to shear creep experiments from other projects of SFB/TR 103. The work of project C8 will answer long standing experimental observations and extends the current understanding of the evolution of the microstructures in superalloys.

Project C8的目的是在变形过程中回答质疑的凹槽和壁架，这是一种动态效应，因为错误适合网络对ɣ粒子的漂流的效果也是如此。使用相位场。