Utjecaj molibdena na strukturne značajke lijevanih titan-krom legura

master's thesis

• Title (english): Effect of molybdenum on the structure characteristics of as cast titanium-chromium alloys
• Author: Lea Klemar
• Mentor: Ljerka Slokar Benić (mentor)
• Committee member: Stjepan Kožuh (predsjednik povjerenstva)
• Committee member: Ljerka Slokar Benić (član povjerenstva)
• Committee member: Ivana Ivanić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Metallurgy; Sisak
• Defense date and country: 2021-06-30, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Metallurgy

Abstract

Dentalna medicina je zahvaljujući razvoju novih tehnologija pospješila održavanje oralnog zdravlja koristeći nove materijale sa još pogodnijim svojstvima za dentalnu primjenu.

U ovom radu tehnologijom lijevanja uspješno je proizvedeno 6 legura Ti-Cr-Mo različitih kemijskih sastava. Odgovarajućim metodama analizirane su im strukturne značajke u svrhu određivanja njihovog potencijala za primjenu u dentalnoj medicini. Upotrebom metoda rendgenske difrakcije, svjetlosne i scanning elektronske mikroskopije, energijsko-disperzijske spektometrije te Vickersove metode za određivanje mikrotvrdoće utvrđeno je da su u svim legurama prisutne α i β faza i to kao supstitucijske čvrste otopine, a u legurama s višim udjelom molibdena još i martenzitna α’’ faza. Mikrotvrdoća određena svim legurama ima zadovoljavajuće vrijednosti za dentalnu primjenu.

Abstract (english)

Thanks to the development of new technologies, dental medicine has improved the maintenance of oral health by using new metallic materials with even more suitable properties for dental use.
In this work, six of Ti-Cr-Mo alloys with different chemical composition were produced by casting technology. Structural characteristics of this alloys were analyzed with purpose of determination their potential for application in dental medicine. Using the X-ray diffraction, light and scanning electron microscopy, energy-dispersive spectroscopy and Vickers method for microhardness determination it was established that in all investigated alloys α and β phase were presented as supstitutional solid solutions. Besides these two phases in alloys with higher content of molybdenum martensitic α’’ phase is presented. Determination of microhardness of all alloys showed satisfying values for dental applications.

• Keywords: dentalne legure; legure titana; lijevanje; struktura; mikrotvrdoća
• Keywords (english): dental alloys; titanium alloys; casting; structure; microhardness
• Language: croatian
• URN:NBN: urn:nbn:hr:115:898286
• Study programme: Title: Graduate study program Metallurgy; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka metalurgije (magistar/magistra inženjer/inženjerka metalurgije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2021-07-12 10:34:41