Influence of Machine Hammer Peening on the Tribological Behavior and the Residual Stresses of Wear Resistant Thermally Sprayed Coatings

Rausch, S.1, a; Wiederkehr, P.1, b; Biermann, D.1, c; Zabel, A.1, d; Selvadurai, U.2; Hagen, L.2; Tillmann, W.2

Institut für Spanende Fertigung, Technische Universität Dortmund, Baroper Str. 303, 44227 Dortmund
Lehrstuhl für Werkstofftechnologie LWT, Technische Universität Dortmund, Leonhard-Euler-Str. 2, 44227 Dortmund

a); b); c); d)


WC-W2C iron based cermet coatings are widely used in the field of wear protection. In surface engineering, machine hammer peening (MHP) is a novel surface treatment technology, which enhances the surface properties, especially for surfaces in tribological contact. In this study, the wear behavior of peened WC-W2C FeCrCMnSi arc sprayed coatings is characterized and compared to conventional coatings under as-sprayed conditions. The resulting strain hardening effects were measured by mechanical response using nanoindentation. In addition, residual stresses at the surfaces were determined using X-ray diffraction and the sin2ψ method.


Machine Hammer Peening, Coating, Residual stress


Procedia CIRP, 45 (2016), S. 275-278, doi: 10.1016/j.procir.2016.02.059