Istraživanje mogućnosti aluminiziranja tvrdih metala u praškastom mediju

Carević, Mateo (2019) Istraživanje mogućnosti aluminiziranja tvrdih metala u praškastom mediju. = Ivestigation of hard metals' pack-cementation aluminizing potential. Undergraduate thesis , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Matijević, Božidar and Kumić, Ivan.

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Abstract (Croatian)

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

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.

Item Type: Thesis (Undergraduate thesis)
Uncontrolled Keywords: tvrdi metali, WC-Co, aluminiziranje u prahu, aluminij
Keywords (Croatian): hard metal, WC-Co, pack-cementation aluminizing, aluminium
Subjects: TECHNICAL SCIENCE > Mechanical Engineering > general mechanical engineering (construction)
Divisions: 1000 Department of Materials > 1020 Chair of Heat Treatment and Surface Engineering
Date Deposited: 22 Feb 2019 09:17
Last Modified: 21 Nov 2019 16:13
URI: http://repozitorij.fsb.hr/id/eprint/9100

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