6533b7ddfe1ef96bd1273c96

RESEARCH PRODUCT

Friction and wear properties of titanium and oxidised titanium in dry sliding against hardened C45 steel

Z. ZaliszL. PtacekS. KrólM. Hepner

subject

Materials scienceCarbon steelMetallurgyMetals and Alloyschemistry.chemical_elementTribologyengineering.materialIndustrial and Manufacturing EngineeringComputer Science ApplicationsWear resistanceMetalchemistryRutileModeling and Simulationvisual_artCeramics and Compositesvisual_art.visual_art_mediumengineeringCarbonLayer (electronics)Titanium

description

Abstract The aim of the paper is to present the results of conformal pin-on-disc tribological tests concerning the hard oxidised zone created in superficial layer of a titanium specimen sliding against the hardened to a hardness of 690 HV carbon C45 steel counterspecimen. Tribological testing was carried out at room temperature and at unlubricated conditions. After tests the structures and chemical compositions of the wear debris and worn surfaces were a subject of SEM and X-ray investigations. In comparison with the baseline the technical quality titanium/C45 steel couple, the wear and lifetime performance of the oxidised titanium/steel C45couple was markedly superior. Dominant wear debris discovered to be chips of metallic titanium with local isles of rutile (TiO2) or to be a fine powder of iron oxides, respectively, to the mating pair. It was confirmed that strong rise of the titanium surface hardness after oxidising increases the couple wear resistance within the factor of ∼160.

https://doi.org/10.1016/j.jmatprotec.2004.09.057