EXPERIMENTAL DETERMINATION OF BIOFILM AND MECHANICAL PROPERTIES OF SURFACES OBTAINED BY CO2 LASER GAS-ASSISTED NITRIDING OF Ti–6Al–4V ALLOY

Levent Urtekin, ÅžEYHMUS Aydin, Ali Sevim, Kadir Gã–k and Ä°brahim Uslan
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Levent Urtekin: Department of Mechanical Engineering, Faculty of Engineering and Architecture, Kirsehir Ahi Evran University, 40100 Kırşehir, Turkey
ŞEYHMUS Aydin: ��Occupational Health and Safety Coordination Unit, Kirsehir Ahi Evran University Rectorate, Kirsehir Ahi Evran University, 40100 Kırşehir, Turkey
Ali Sevim: ��Department of Plant Protection, Faculty of Agriculture, Kirsehir Ahi Evran University, 40100 Kırşehir, Turkey
Kadir Gã–k: �Department of Biomedical Engineering, Faculty of Engineering and Architecture, Ä°zmir Bakırçay Universty, Ä°zmir, Turkey
İbrahim Uslan: �Department of Mechanical Engineering, Faculty of Engineering, Gazi University 06000, Ankara, Turkey

Surface Review and Letters (SRL), 2022, vol. 29, issue 11, 1-11

Abstract: The nitriding process is a surface treatment that improves the surface properties of titanium alloys and increases wear/corrosion resistance. This study investigates the structural and mechanical property changes in titanium alloy after nitriding. Micro-hardness differences between the nitrided and non-nitrided surface and morphological changes on the surface were determined. In addition to evaluating the effect of vanadium and aluminum ions on the nonnitrided surface, the impact of nitrided and non-nitrided surfaces on biofilm layer formation was investigated. It was determined that the TiN layer formed on the nitrided surface showed superior properties to its non-nitrided surface in the biofilm tests performed for 6 h. As a result of the tensile tests, it can be said that the nitriding process increases the elasticity module of the Ti–6Al–4V alloy and provides the material to have a more rigid structure. It was also analyzed using finite element analysis (FEA) of mechanical behaviors of the test sample under the tension loads.

Keywords: Nitration; biofilm; Ti-6Al-4V (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1142/S0218625X22501542

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