Wear behavior of Diamond-like Carbon Deposited on Ti6Al4V Prepared with Surface Mechanical Attrition Treatment

Luciane Yumi Suzuki De Oliveira (1) , Carlos José Mesquita Siqueira (2) , Beatriz Luci Fernandes (1) , Neide Kuromoto (2) , Delphine Retraint (3)

1 PUCPR - Pontifícia Universidade Católica do Paraná
2 UFPR - Universidade Federal do Paraná
3 LASMIS - Laboratoire des Systèmes Mécaniques et d'Ingénierie Simultanée

Surface modification by deposition of hard coatings is a way to overpass the poor wear resistance of some metallic materials and one potential material is the Diamond-Like Carbon (DLC). We investigated the wear behavior, and the adhesion of the DLC deposited on a Ti6Al4V (Ti64) alloy after Surface Mechanical Attrition Treatment (SMAT). The SMAT was applied using 100Cr6 steel balls, and the DLC was deposited through the sputtering method. The nano-hardness was evaluated using a MTS Nano Indenter XP. The adhesion of the DLC was evaluated using a CSM Revetest, and the wear tests was performed in a reciprocating linear tribometer from CSM Instruments. The mean wear rate for the Ti64 was 437x10-6 mm3/N/m against 5x10-6 mm3/N/m for the Ti64+SMAT+DLC. The SMAT reduced the wear rate of the DLC coating, showing that the SMAT might be a viable treatment with promising results regarding the DLC wear resistance.

Keywords: Ti6Al4V; DLC coating; SMAT on Ti6Al4V surface

Domains: Engineering Sciences [physics]; Mechanics [physics.med-ph]; Mechanics of materials [physics.class-ph]

Luciane Yumi Suzuki De Oliveira, Carlos José Mesquita Siqueira, Beatriz Luci Fernandes, Neide Kuromoto, Delphine Retraint. Wear behavior of Diamond-like Carbon Deposited on Ti6Al4V Prepared with Surface Mechanical Attrition Treatment. Materials Research, 2019, 22 (2), ⟨10.1590/1980-5373-mr-2018-0568⟩. ⟨hal-02283379⟩