In the Collaborative Research Centre 761’s “Steel ab initio - quantum mechanics guided design of new Fe based materials,” scientists and engineers from RWTH Aachen University and the Max Planck Institute for Iron Research conducted research on mechanism-controlled material development with a particular focus on high-manganese alloyed steels. From 2007 to 2019, a total of 55 partial projects and four transfer projects with industrial participation (some running until 2021) have studied material and process design as well as material characterization. The basic idea of the Collaborative Research Centre was to develop a new methodological approach to the design of structural materials. This paper focuses on selected results with respect to the mechanical properties of high-manganese steels, their underlying physical phenomena, and the specific characterization and modeling tools used for this new class of materials. These steels have microstructures that require characterization by the use of modern methods at the nm-scale. Along the process routes, the generation of segregations must be taken into account. Finally, the mechanical properties show a characteristic temperature dependence and peculiarities in their fracture behavior. The mechanical properties and especially bake hardening are affected by short-range ordering phenomena. The strain hardening can be adjusted in a never-before-possible range, which makes these steels attractive for demanding sheet-steel applications.

在761的合作研究中心“ Steel ab initio-量子力学指导了新的铁基材料的设计，”亚琛工业大学和马克斯·普朗克钢铁研究所的科学家和工程师进行了机制控制材料开发的研究，特别关注高锰合金钢。从2007年到2019年，总共有55个部分项目和4个有工业参与的转移项目（有些一直运行到2021年）已经研究了材料和工艺设计以及材料特性。协作研究中心的基本思想是开发一种用于结构材料设计的新方法论方法。本文重点介绍了有关高锰钢的机械性能，其潜在的物理现象，以及用于此类新材料的特定表征和建模工具。这些钢的显微组织需要通过使用现代方法在纳米尺度上进行表征。沿工艺路线，必须考虑隔离的产生。最后，机械性能显示出特征性的温度依赖性和其断裂行为的特性。短程有序现象会影响机械性能，尤其是烘烤硬化。可以在前所未有的范围内调节应变硬化，这使这些钢对要求苛刻的钢板应用具有吸引力。必须考虑种族隔离的产生。最后，机械性能显示出特征性的温度依赖性和其断裂行为的特性。短程有序现象会影响机械性能，尤其是烘烤硬化。可以在前所未有的范围内调节应变硬化，这使这些钢对要求苛刻的钢板应用具有吸引力。必须考虑种族隔离的产生。最后，机械性能显示出特征性的温度依赖性和其断裂行为的特性。短程有序现象会影响机械性能，尤其是烘烤硬化。可以在前所未有的范围内调节应变硬化，这使这些钢对要求苛刻的钢板应用具有吸引力。