Project C05

Characterization and optimization of the tribological properties of hybrid porous components in lubricated conditions

The properties of a tribological contact, such as friction and wear, are influenced by the characteristics of the contacting bodies, the lubricant, and the environment. These can be optimized, for instance, by using hybrid porous materials. A porous core with a solid outer layer can also reduce component mass and material consumption. The aim of this project is to characterize the properties of HyPo-components in tribological contacts. Methods for adjusting their behavior and assessing their lifespan will be developed. This involves both simulation and experimental work. Simulations of HyPo-contacts will be used to predict the dependencies between performance and material properties. These are based on a thermo-elastohydrodynamic (TEHL) model, which considers changes in material behavior with porosity.
Later, when samples are available, they will be tested with various tribometers to characterize HyPo-components' performance. Based on these studies, guidelines for selecting materials, grading, and porosity for HyPo-components will be formulated.

Project leaders
Prof. Dr.-Ing. Oliver Koch
Jun. Prof. Dr.-Ing. Stefan Thielen

Doctoral researcher
Olaf Grutzka, M.Sc.

Publications