Improved adhesion of cathodic arc PVD AlCrSiN coating on ion-implanted WC-Co substrates

Ion implantation has been shown to improve adhesion strength of AlCrSiN coatings due a synergic enhancement on fracture toughness and load bearing capability the substrate that can potentially increase in-service efficiency coated cutting tools. In this work, deposited by PVD WC-Co substrates implanted with Ti, Cr N ion species have processed. The mechanical properties characterized contact techniques residual stress evaluated using FIB-DIC technique Vickers indentation tests, respectively. An improvement is obtained for treated substrates, especially those titanium chromium ions. This attributed introduction stresses in substrate, which increases its enhances capability.