Research projects of the Institute of Machine Design and Tribology


  • Boundary layer functionalization by deformation-induced martensite on ball bearing rings
    The aim of this research project is the targeted use of forming-induced phase transformation in the surface layer of complex solid-formed components made of metastable austenitic steels, using the example of a rolling bearing inner ring. The forming process is intended to selectively influence the material properties in the near-surface region and thus optimize the component properties. These component properties in the form of residual stresses have a positive influence on the fatigue life of rolling contacts. In particular, further knowledge is required on local strain hardening and martensitic phase transformation in the area of the boundary layer, in both the manufacturing and service life phases.
    Led by: Prof. Dr.-Ing. Gerhard Poll, Prof. Dr.-Ing. Bernd-Arno Behrens
    Team: Alexander Bodewig M.Sc.
    Year: 2020
    Funding: German Research Foundation (DFG) - Project number 423160066
    Duration: 08/2020-07/2023