Adhezijska otpornost materijala na automatiziranom uređaju "prizma po prstenu"

master's thesis

• Title (english): The adhesion resistance of materials on automated "block on ring" device
• Author: Martin Štefan
• Mentor: Suzana Jakovljević (mentor)
• Committee member: Suzana Jakovljević (predsjednik povjerenstva)
• Committee member: Darko Landek (član povjerenstva)
• Committee member: Irena Žmak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2021-07-14, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

U teorijskom dijelu diplomskog rada prikazana je podjela mehanizama trošenja. Nadalje, opisan je postupak ispitivanja „block on ring“ uz dane formule za izračunavanje parametara kao što su sila trenja i faktor trenja. U nastavku je ukratko objašnjena automatizacija uređaja za ispitivanje metodom „block on ring“ koji se nalazi u Laboratoriju za tribologiju na Fakultetu strojarstva i brodogradnje u Zagrebu. Također je prikazan i koncept za daljnje unaprjeđenje sustava za ispitivanje različitim metodama ispitivanja trošenja.
U eksperimentalnom dijelu provedeno je ispitivanje metodom „block on ring“ u suhom i vlažnom stanju na uzorcima titanija, kroma, čelika, visokomolekularnog polietilena i umreženog visokomolekularnog polietilena. U svim ispitivanjima je korišten jednaki čelični prsten. Također je i provedeno mjerenje hrapavosti površine uzoraka i tvrdoća istih. Zaključno su određeni faktori trenja te otpornost na adhezijsko trošenje u više vremenskih intervala.

Abstract (english)

First part of this paper gives a review of tribological mechanisms with mathematical formulas for calculating parameters such as friction force and friction coefficient. Summary of automation of the device for block on ring test that is owned by Faculty of mechanical engineering and naval architecture is also given in continuation. Furthermore, concept of improved design for tribological tests is described briefly.
In the experimental part, block on ring test was performed in dry and wet conditions on titanium, chrome, steel, UHMWPE and UHMWPE cross-linked samples. In all tests, equal steel ring was used. Surface roughness and hardness of the samples was also analyzed. After tests, friction coefficient and adhesion resistance was calculated for every sample in different time intervals.

• Keywords: trošenje; „block on ring“; titanij; krom; čelik; visokomolekularni polietilen; hrapavost; tvrdoća
• Keywords (english): block on ring; titanium; chrome; steel; UHMWPE; surface roughness; hardness
• Language: croatian
• URN:NBN: urn:nbn:hr:235:923675
• 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: 2021-07-12 20:14:12