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Microstructures are responsible for the properties of raw materials and therefore for the properties of the resulting components which are produced. Microstructures are adjusted using different manufacturing steps. In use, they can change both positively and negatively. We uncover the relationships between the raw materials’ properties and those of the microstructure and use this information for optimized raw material properties and for the optimized use of raw materials - for example with regard to mechanical properties, long-term behavior, life expectancy, abrasive properties, corrosion properties, etc.). By using computer simulations, we can predict microstructures and assess them with regard to the reliability, safety and expected lifetime of components. Building on this, we develop concepts to design components and optimize manufacturing.