Initially, the working group will focus on tribological phenomena and cold pressure welding processes for a first closer examination or identification of the potential for connections between the subprojects. The influence of oxide layers on the physical properties of the bonding of composite materials will be investigated by means of multi-scale simulations in order to understand these processes. Atomistic processes are to be linked here via contact surfaces with finite element simulations. In particular, process conditions are identified which lead to high-quality, metallurgically bonded compounds. The hardness of the materials as an indicator for the quality of the compound is determined experimentally by nanoindentation and compared with simulation values. The linkage between models on different length scales provides the basis for a cross-scale modelling of the phenomena.
In the future, the findings will be extended to wetting processes and the resulting material closure. The aim is to create a basis on which a common physical-chemical modelling of the material flow, valid for the entire CRC, can be developed.
