Promjena svojstava titanijeve legure Ti6Al4V nitriranjem i PACVD prevlačenjem

master's thesis

• Title (english): Modifying the properties of titanium alloy Ti6Al4V applying nitriding and PACVD coating
• Author: Josip Grubišić
• Mentor: Darko Landek (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2018-12-06, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U radu su prikazana ispitivanja korozijskih svojstava titanijeve legure Ti6Al4V. Ispitivani su uzorci legure koji su prevučeni TENIFER postupkom, nitrirani u plazmi, prevučeni PACVD dupleks postupkom (plazma nitrirano + TiN/TiCN) te legura u polaznom stanju. Provedena su ispitivanja otpornosti na koroziju i karakterizacija svojstava prevlake (adhezivnost, debljina prevlake) te analiza mikrostrukture površinskog sloja. Postupci ispitivanja otpornosti na koroziju u fiziološkoj otopini provedeni su postupkom elektrokemijske impendancijske sprektroskopije. Adhezivnost prevlake ispitivana je metodom Rockwell C dok je mikrostruktura anaizirana na svjetlosnom mikroskopu. Prema rezultatima ispitivanja najbolju otpornost na koroziju pokazali su uzorci nitrirani u plazmi.

Abstract (english)

This paper presents the tests of corrosion properties of titanium alloy Ti6Al4V. The alloy samples that were tested were coated with TENIFER process, plasma nitrated, coated with PACVD duplex process (plasma nitride + TiN/TiCN) and alloy in the initial state. Corrosion resistance tests, characterization of coating properties (adhesion, coat thickness) and microstructure analysis of the surface layer were carried out. Corrosion resistance methods in psysiological saline were performed by electrochemical impendance spraying. The adhesiveness of the coating was carried out by the Rockwell C method while the microstructure was observed on a light microscope. According to the results of tests the best corrosion resistance showed nitrated plasma samples.

• Keywords: Ti6Al4V; PACVD; nitriranje u plazmi; adhezivnost prevlake; elektrokemijska ispitivanja
• Keywords (english): Ti6Al4V; PACVD; plasma nitrite; coating adhesion; electrochemical tests
• Language: croatian
• URN:NBN: urn:nbn:hr:235:425282
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-24 12:59:31