Changes in the structure and properties of TiN coatings irradiated with Ti ions of moderate energies

Abstract This paper presents investigations of changes in the structure and properties of wear-resistant multilayer TiN coatings implanted with Ti ions of moderate energies (20 keV) at a dose of 10 16 ion/cm 2 . The coatings have been deposited by arc evaporation onto the hard alloy plates. To investigate the structure and physico-mechanical characteristics of the coatings, we have employed the methods of metallography, scanning electron microscopy, X-ray and microspectrum X-ray analysis. We have determined microhardness and cutting characteristics. It has been established that the alloy plates hardened by the suggested method show a two-fold decrease in the facet height of wear of the cutting edge, as compared to a multilayer unimplanted TiN coating, and a five-fold decrease as compared to the uncoated hard alloy plates. The facet width of wear undergoes a 1.5-fold and 2.5-fold decrease, respectively.