Utjecaj prevlake PACVD TiN na povećanje otpornosti na adhezijsko trošenje biomedicinske legure Ti6Al4V u triboparu s titanijem

master's thesis

• Title (english): The effect of PACVD TiN coating on increasing the resistance to adhesive wear of biomedical alloy Ti6Al4V in tribocouple with titanium
• Author: Josipa Jonjić
• Mentor: Darko Landek (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2024-12-05, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Biomedicinske legure titanija predstavljaju optimalni materijal za izradu raznih implantata i uređaja u medicini. Među njima, legura Ti6Al4V se ističe kao primarni izbor za primjenu. Međutim, za primjenu legura Ti6Al4V zahtijeva prevlačenje površine u svrhu poboljšanja loše otpornosti na trošenje. U radu je analiziran utjecaj prevlake TiN na poboljšanje svojstava legure Ti6Al4V. Legura Ti6Al4V dobivena je EBM aditivnim postupkom, dok je prevlaka TiN nanesena je na titanijevu leguru u parnoj fazi PACVD postupkom.
U teorijskom dijelu rada opisane su titanijeve legure, biomedicinske legure titanija te njihova svojstva i primjena. Također, opisane su biokompatibilne prevlake, metode modifikacije i prevlačenja površina te metode kojima se karakteriziraju svojstva površine.
U sklopu eksperimentalnog dijela rada provedeno je ispitivanje mikrotvrdoće, hrapavosti, debljine prevlake, faktora trenja te otpornosti na adhezijsko trošenje tri prevlake TiN različite debljine na leguri Ti6Al4V u triboparu s prstenom od titanija. Na temelju dobivenih rezultata provedena je analiza i procjena utjecaja prevlake na poboljšanje svojstava ispitane legure te je preporučena optimalna debljina prevlake.

Abstract (english)

Biomedical titanium alloys are the optimal material for making various implants and devices in medicine. Among them, the Ti6Al4V alloy stands out as the primary choice for the application. However, the application of Ti6Al4V alloys requires surface coating to improve poor wear resistance. The paper analyzes the influence of the TiN coating on the improvement of the properties of the Ti6Al4V alloy. The Ti6Al4V alloy was obtained by the EBM additive process, while the TiN coating was applied to the titanium alloy in the vapor phase by the PACVD process.
In the theoretical part of the work, titanium alloys, biomedical titanium alloys and their properties and applications are described. Biocompatible coatings, surface modification and coating methods, and methods for characterizing surface properties are also described.
As part of the experimental part of the work, the microhardness, roughness, coating thickness, friction factor and resistance to adhesive wear of three TiN coatings of different thickness on the Ti6Al4V alloy in a tribocouple with a titanium ring were tested. Based on the obtained results, an analysis and assessment of the influence of the coating on the improvement of the properties of the tested alloy was carried out, and the optimal thickness of the coating was recommended.

• Keywords: titanij; biomedicina; prevlaka; PACVD; adhezijsko trošenje
• Keywords (english): titanium; biomedicine; coating; PACVD; adhesive wear
• Language: croatian
• URN:NBN: urn:nbn:hr:235:045260
• Study programme: Title: Mechanical Engineering; specializations in: Design, Process and Energy Engineering, Production Engineering, Engineering Modelling and Computer Simulation, Marine Engineering, Industrial Engineering and Management, Materials Engineering, Mechanics and Robotics, Autonomous Systems, Mechatronics and Robotics; Course: Materials Engineering; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka strojarstva (sveučilišni/a magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-12-03 21:45:33