Povišenje otpornosti na mikroabrazijsko trošenje austenitnog nehrđajućeg čelika X5CrNiMo17-12-2 boriranjem u prašku

undergraduate thesis

• Title (english): Increasing resistance to micro-abrasion wear of austenitic stainless steel X5CrNiMo17-12-2 by powder boronizing
• Author: Lucija Mađerić
• Mentor: Darko Landek (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2024-02-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U teorijskom dijelu rada opisan je postupak boriranja u prašku te karakteristike boridnog sloja. Objašnjeni su utjecaji na mikrostrukturu, debljinu i svojstva boridnih slojeva. Definirani su austenitni čelici te je opisan austenitni nehrđajući čelik X5CrNiMo17-12-2. Opisane su metode za ispitivanje hrapavosti površine, mikrotvrdoće te otpornosti na mikroabraziju.
U ekperimentalnom dijelu rada opisan je postupak pripreme i provođenja postupka boriranja čelika X5CrNiMo17-12-2 s različitim trajanjima boriranja. Nakon boriranja, provedena je analiza mikrotvrdoće i hrapavosti površine te debljine i mikrotvrdoće boridnog sloja. Provođenjem ispitivanja slobodnom rotirajućom kuglicom ispitana je otpornost boridnog sloja na mikroabraziju.

Abstract (english)

In the theoretical section, the process of powder boriding and the characteristics of boride layers were described. Impacts on the microstructure, thickness and properties of the boride layers were explained. Austenitic steels were deefined and the austenitic stainless steel X5CrNiMo17-12-2 was described. Methods for surface roughness testing, hardness testing and microabrasion wear testing were described.
In the experimental part, the procedures for preparing and executing the boriding process of theX5CrNiMo17-12-2 steel with varying ties of boriding were described. After boriding, the analysis of the hardness and roughness of the surface and thickness and hardness of the boride layers were performed. Using the free ball method, the microabrasion wear resistance was tested.

• Keywords: Boriranje; boridni sloj; mikroabrazija; austenitni nehrđajući čelik
• Keywords (english): Boriding; borided layers; microabrasion wear; austenitic stainless steel
• Language: croatian
• URN:NBN: urn:nbn:hr:235:158823
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-02-23 13:50:10