Modellverschleißuntersuchungen an unterschiedlichen Schichtsystemen in Abhängigkeit von den herstellungsbedingten Charakteristika

• Applicant: Professor Dr.-Ing. Volker Wesling
• Subject Area: Materials Engineering
• Term: from 2009 to 2011
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 133282892

Thin-film technology offers a broad spectrum of materials to generate wear-resistant coatings. Intentional engagement into the coating process allows a variable design of the coating which includes the hardness, microstructure and a graded layer composition. The new High Power Impulse Magnetron Sputtering (HiPIMS) technology allows to vary process parameters like pulse power up to one megawatt or pulse length. Multilayers have a good connection to the base material with increasing hardness to the top layer. Chipping off of the layer caused by residual stresses can be avoided.High temperature applications like hot gas fans use PVD-coatings for the fan blades. Material loss caused by erosive wear leads to increasing tolerances at the blade tips. This reduces the efficiency of the fans. Coatings are necessary to increase the life-time of components, especially for high temperature applications.The development of wear protection coatings against erosive, abrasive and adhesive wear under high temperature conditions is the focus of this research project. Wear tests with these conditions have to be executed to determine the change of wear mechanisms with increasing temperature. The appreciation of these wear mechanisms allows to modify the microstructure of the coatings for a higher wear resistance.

• DFG Programme: Research Grants
• Participating Person: Dr.-Ing. Peter Giese