Istraživanje mogućnosti aluminiziranja tvrdih metala u praškastom mediju

undergraduate thesis

• Title (english): Ivestigation of hard metals' pack-cementation aluminizing potential
• Author: Mateo Carević
• Mentor: Božidar Matijević (mentor)
• Mentor: Ivan Kumić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2019-02-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

Istražena je mogućnost modificiranja površine tvrdog metala na bazi WC-Co postupkom difuzijskog prevlačenja aluminijem iz smjese prahova. U eksperimentalnom dijelu rada korišteni su uzorci tvrdog metala u predsinteriranom stanju. U ovom radu prikazan je postupak aluminiziranja u praškastom mediju tvrdih metala s kobaltom kao vezivnim materijalom te je ispitana uspješnost provedenog postupka analizom mikrostrukture pomoću optičkog i elektronskog mikroskopa te EDS analizom – analizom sadržaja aluminija po poprečnom presjeku uzoraka. Postupak aluminiziranja u prahu proveden je u Laboratoriju za toplinsku obradu, a metalografska priprema i analiza u Laboratoriju za materijalografiju Fakulteta strojarstva i brodogradnje, Sveučilišta u Zagrebu. SEM i EDS analiza provedene su u Laboratoriju za elektronsku mikroskopiju Fakulteta kemijskog inženjerstva i tehnologije, Sveučilišta u Zagrebu.

Abstract (english)

WC-Co based hard metals' surface modification potential was investigated by diffusion coating process with aluminium from powder mixture. In the experimental part, hard metal samples were in presintered condition. In this paper will be shown: the procedure of hard metals' aluminizing in powder mixture with cobalt as binding material, and examination of the efficinecy of the process that was carried out by optical and electronic microscopy as well as EDS analysis of the aluminium distribution on the sample cross-section. Pack-cementation aluminizing process was performed at the Heat Treatment Laboratory of the Faculty of Mechanical Engineering and Naval Architecture of the University of Zagreb, and EDS analysis was performed at the Electronic Microscopy Laboratory of the Faculty of Chemical Engineering and Technology of the University of Zagreb.

• Keywords: tvrdi metali; WC-Co; aluminiziranje u prahu; aluminij
• Keywords (english): hard metal; WC-Co; pack-cementation aluminizing; aluminium
• Language: croatian
• URN:NBN: urn:nbn:hr:235:429654
• 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: 2019-05-22 23:55:56