SPP 2074:  Fluidless Lubricationsystems with high mechanical Load

• Subject Area: Mechanical and Industrial Engineering
• Term: since 2018
• Website: Homepage
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 357505886

The vast majority of tribological systems in technical applications are lubricated with fluids, which are mostly oils and greases. In cases where lubrication with oil or grease is not possible because the lubricant evaporates in a vacuum, for example, a solid is often applied to the component surfaces as an alternative. The lubrication mechanism in solid layers is fundamentally different from tribosystems with fluids as lubricants. The complexity of the research subject requires an interdisciplinary approach in which methods of mechanical engineering and materials technology as well as physical and chemical simulation and analysis methods must be used in a specifically networked manner.Scientific goalsIn the priority program "Fluid-free lubrication systems with high mechanical loads", the mechanisms of friction and wear due to the formation of transfer layers in tribological systems with high mechanical loads when lubricated with solid lubricants are to be researched. In the first funding period, the focus was on the provision processes of the solid lubricant and the associated transfer processes. In the second funding period, the understanding will be used for the synthesis of solid lubricant concepts. The focus will be on applications in machine elements and in drive systems with highly loaded rolling/roller contacts.

• DFG Programme: Priority Programmes

Projects

• Coordination Funds (Applicant Sauer, Bernd )
• Coordination proposal for the priority program "Fluid-free lubrication systems with high mechanical load". (Applicant Sauer, Bernd )
• Dry lubrication of rolling contacts by self-regenerating molybdenum-oxide coatings (Applicants Behrens, Bernd-Arno ;  Möhwald, Kai ;  Poll, Gerhard )
• Dry Lubrication of Spur Gears - Contour-matched coating design and tribological evaluation of performance limits (Applicants Bobzin, Kirsten ;  Stahl, Karsten )
• Fluid-free lubricant layers for the heavily loaded and unsynchronized operation of dry-running screw machines (Applicants Brümmer, Andreas ;  Debus, Jörg ;  Tillmann, Wolfgang )
• Fluid-free lubrication systems for high mechanically loaded linear bearings by coating optimization of the functional elements (Applicants Bräuer, Günter ;  Molter, Jürgen )
• Fundamental multiscale investigations for improved calculation of the service life of solid lubricated rolling bearings (Applicants Merle, Benoit ;  Meyer, Bernd ;  Tremmel, Stephan )
• Mechanism-based understanding of the transfer of plastic-bonded fluid-free lubricant systems in the lubricant body-to-body contact and its influence on the tribological properties in highly loaded body-to-body contacts (Applicants Kopnarski, Michael ;  Schlarb, Alois K. )
• Mechanisms of graphite lubrication in rolling contacts (Applicants Albers, Albert ;  Dienwiebel, Martin ;  Moseler, Michael )
• Polytetrafluoroethylene lubrication of radial rolling bearings: Control of lubricant transfer by cage design according to material-specific requirements (Applicants Jacobs, Georg ;  Moseler, Michael )
• Solid lubrication by carbon nanotubes: Understanding transfer layer formation and sliding at a fundamental level using atomistic simulations and experimental nano analytics (Applicants Moseler, Michael ;  Mücklich, Frank )
• Solid Lubrication of Worm Gears based on PTFE (Applicants Gedan-Smolka, Michaela ;  Kopnarski, Michael ;  Sauer, Bernd )
• Tribological transfer mechanisms and large area micro-contact simulation of solid lubricant supply from PVD layers for dry running gear stages (Applicants Brecher, Christian ;  Mehner, Andreas )

• Spokesperson: Professor Dr.-Ing. Bernd Sauer