Efficient separation of valuable metals from various slags is of great interest for the industry to effectively utilize valuable raw materials. Present work focuses on modeling the deformation and damage behavior of manganese containing slag materials at the microstructural level, which dictates the macroscopic material behavior and allows one to investigate possibilities to perform metal separation after comminution of the slags. The model includes finite element micromechanical description of the material behavior and slag microstructure. Computational micromodels are constructed based on direct input characterization data and statistically representative synthetic models. The damage model treats brittleness and ductility of the material together with phase specific material behavior, all relevant to comminution of the slag. Finally, a simplified jaw crusher simulation accounts for freeing materials, assisting the evaluation of empirical random breakage, all together with a microstructural particle study which is analyzed against micromechanical modeling. Crystal plasticity level simulations of surface deformation and hardening in jaw crusher are presented to couple macroscale crushing events with microscale deformation of wear parts. The work overall presents a workflow and proposes a methodology how digitalization and multi-scale material modeling can contribute to the development of efficient comminution means for hard to process secondary raw materials.

有效地从各种炉渣中分离有价金属对有效利用有价值的原材料具有重要意义。目前的工作重点是在微观结构水平上模拟含锰渣材料的变形和损坏行为，这决定了宏观材料行为，并允许人们研究在渣粉碎后进行金属分离的可能性。该模型包括材料行为和炉渣微观结构的有限元微观力学描述。计算微模型是基于直接输入表征数据和具有统计代表性的合成模型构建的。损伤模型将材料的脆性和延展性与相特定的材料行为一起处理，所有这些都与炉渣的粉碎有关。最后，简化的颚式破碎机模拟考虑了释放材料，协助评估经验性随机破损，以及针对微观机械模型进行分析的微观结构颗粒研究。提出了颚式破碎机表面变形和硬化的晶体塑性水平模拟，以将宏观破碎事件与磨损部件的微观变形相结合。该工作总体上提出了一个工作流程，并提出了一种方法论，即数字化和多尺度材料建模如何有助于开发用于难以加工的二次原材料的有效粉碎手段。提出了颚式破碎机表面变形和硬化的晶体塑性水平模拟，以将宏观破碎事件与磨损部件的微观变形相结合。该工作总体上提出了一个工作流程，并提出了一种方法论，即数字化和多尺度材料建模如何有助于开发用于难以加工的二次原材料的有效粉碎手段。提出了颚式破碎机表面变形和硬化的晶体塑性水平模拟，以将宏观破碎事件与磨损部件的微观变形相结合。该工作总体上提出了一个工作流程，并提出了一种方法论，即数字化和多尺度材料建模如何有助于开发用于难以加工的二次原材料的有效粉碎手段。