SEM and SEAM Study on Tribological Performance of Metal/Ceramic Composite Coatings

A series of dry friction tests of metal/ceramic composite coatings and carbon steel coating against mild carbon steel were carried out under room temperature using an SRV Friction and Wear Tester. The tribological behaviors of plasma sprayed CoCrMoSi+Al2O3ZrO2, CoCrMoSi+FesO4 and Cr1Mn1C1 carbon steel coatings were compared by means of SEM and Scanning Electron Acoustic Microscopy (SEAM). The results show that microcutting, the propagation and coalescence of micro-cracks of the materials appear in the wear process, adhesion wear still is the main mechnism of the metal/ceramic composite coatings.