Time: 02:40 p.m.
Place: Materials Day 2013, Ruhr-Universität Bochum, Bochum, Germany
Christopher Rynio, Institut für Werkstoffe, Ruhr-Universität Bochum, Bochum, Germany
The evolution of surface regions during dry sliding wear of a Ni-based superalloy pin against a cast iron disc was investigated at temperatures from ambient to 800 °C. Transmission electron microscopy (TEM) results indicate the formation of wear resistant nanocrystalline surface layers (so-called ‘glaze’-layers), which reduce the wear rates at higher temperatures by orders of magnitude.