Ispitivanje otpornosti na mikro abraziju PACVD prevlaka na alatnom čeliku za topli rad X37CrMoV5-1

master's thesis

• Title (english): Testing the micro abrasion resistance of PACVD coatings on hot work tool steel X37CrMoV5-1
• Author: Marko Bukovac
• Mentor: Darko Landek (mentor)
• Committee member: Suzana Jakovljević (predsjednik povjerenstva)
• Committee member: Krešimir Grilec (član povjerenstva)
• Committee member: Darko Landek (član povjerenstva)
• 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

U teorijskom dijelu ovog rada opisana je toplinska obrada čelika X37CrMoV5-1,
postupak plazmatskog nitriranja i postupak prevlačenja PACVD, kojima su obrađena tri
ispitna uzorka dok je usporedbeni, četvrti uzorak ispitivan u polaznom kaljenom i
popuštenom stanju. U eksperimentalnom dijelu provedena su ispitivanja prionjivosti
prevlaka Rockwell C metodom i određivanja debljine prevlaka kalotestom kako bi se
karakterizirala svojstva dobivenih prevlaka na uzorcima B1, B2 i B3 koji su nitrirani i
prevučeni redom prevlakama od TiN-a, TiCN-a i TiBN-a. Ispitivanjem hrapavosti
površine uočen je porast hrapavosti prevlaka, u odnosu na polaznu površinu, nastao kao
rezultat formiranja i rasta prevlaka. Debljina prevlaka iznosila je između 2 do 3 µm.
Najmanja brzina mikorabrazijskog trošenja postignuta je na prevlaci PACVD TiBN, dok
je brzina trošenja prevlaka PACVD TiN i PACVD TiCN podjednaka.

Abstract (english)

In the theoretical part of this work, the heat treatment of X37CrMoV5-1 steel, the plasma
nitriding process, and the PACVD coating process are described. These processes were
applied to three test samples, while the fourth, comparative sample was tested in its initial
quenched and tempered condition. In the experimental part, adhesion testing of the
coatings was conducted using the Rockwell C method, and the coating thickness was
determined using calotest method to characterize the properties of the coatings on samples
B1, B2 and B3, which were nitrided and coated with TiN, TiCN and TiBN coatings,
respectively. Surface roughness testing revealed an increase in roughness of the coatings
compared to the initial surface, resulting from the formation and growth of the coatings.
The coating thickness ranged from 2µm to 3 µm. The lowest rate of microabrasion wear
was achieved with the PACVD TiBN coating, while the wear rates of the PACVD TiN
and PACVD TiCN coatings were approximately equal.

• Keywords: X37CrMoV5-1; PACVD; TiN; TiCN; TiBN; kalotest; mikroabrazijsko trošenje; Rockwell C metoda
• Keywords (english): X37CrMoV5-1; PACVD; TiN; TiCN; TiBN; Calotest; Microabrasive wear; Rockwell C method
• Language: croatian
• URN:NBN: urn:nbn:hr:235:745065
• 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: 2024-11-29 09:02:30