Adhesion and Mechanical Properties of TiAlN and AlTiN Magnetron Sputtered Coatings Deposited on the DMSL Titanium Alloy Substrate |
| M. Walczak, K. Pasierbiewicz, M. Szala
Lublin University of Technology, Faculty of Mechanical Engineering, Department of Materials Engineering, Nadbystrzycka St. 36, 20-618 Lublin, Poland |
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| Consideration of thin films such as deposition of TiAlN or AlTiN on DMLS (direct metal laser sintered) titanium-based implants is a new biomedical trend. The present study encompassed the investigations of hardness, Young modulus, adhesion of TiAlN and AlTiN magnetron sputtered coatings deposited on DMLS (direct metal laser sintering) of Ti6Al4V substrate. The titanium based substrate was manufactured in the DSLM process by means of 3D EOSINT M280 printer for metals supplied by EOS. The surface morphology of specimens was examined using the Dektak 150 profilometer (Veeco Instruments Inc., USA). The mechanical properties (hardness, Young's modulus) of nitride coatings and the substrate were tested by means of Ultra Nanoindentation Tester (Anton Paar GmbH, Germany). The values of hardness and elastic modulus were calculated from the load-displacement data according to the Oliver Pharr method. The adhesion of deposited coatings was determined by means of the scratch test and Rockwell test. Scratch tests were performed on a Micro Combi Tester (Anton Paar GmbH, Germany) according to the ASTM C1624 - 05(2015) standard for ceramic coatings scratch testing. It was found that TiAlN as well as AlTiN films were characterised by excellent adhesion to DMLS titanium-based substrate as well as sufficient morphology and mechanical properties. |
DOI:10.12693/APhysPolA.136.294 PACS numbers: 68.37.-d, 68.35.Np, 71.55.Ak, 81.15.Cd, 89.20.Kk |