Istraživanje mogućnosti recikliranja praškastog medija za boriranje

undergraduate thesis

• Title (english): Investigation of recycling capacity of pack-cementation boriding media
• Author: Ljerka Juroš
• 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

Abstract

Današnje težnje uštedama i ekološka osviještenost dovele su do recikliranja mnogo toga, tako i praha za boriranje. Kako bi se u potpunosti shvatio mehanizam i kinetika nastanka boriranih slojeva, odgovor je potrebno potražiti u fizikalnim zakonima i matematičkim modelima. Cilj ovoga rada je proučiti morfologiju, hrapavost i kemijski sastav boridnih slojeva koji su nastajali korištenjem smjesa novog i recikliranog praha za boriranje u različitim omjerima. Korištene su tri različite kombinacije praha: novi prah, stari prah te kombinacija novog i starog praha. Uzorci su analizirani na svjetlosnom mikroskopu i skenirajućem elektronskom mikroskopu s ugrađenim EDS (eng. Energy Dispersive Spectroscopy) detektorom. Primjećeno je kako različite smjese daju različite dubine, hrapavosti i morfologije boridnih slojeva.

Abstract (english)

Today's savings aspirations and ecological awareness have brought recycling in many aspects in our lives, as in recycling boriding powder. In order to completely understand mechanism and kinetics of occurrence of boride layers, use of physical laws and mathematical models is needed. In this paper morphology, roughness and chemical composition of boriding layers will be considered. There were used 3 different combinations of powder; new, old and mixture of new and old one. Borided samples are analyzed on a light microscope and scanning electron microscope with implanted EDS (Energy Dispersive Spectroscopy) detector. It is noticed how various powder mixtures result in different depth, roughness and morphology of borided layers.

• Keywords: boriranje; boridni sloj; difuzija; morfologija; hrapavosti Key words: boriding; boride layers; diffusion; morphology; roughness
• Keywords (english): boriding; boride layers; diffusion; morphology; roughness
• Language: croatian
• URN:NBN: urn:nbn:hr:235:567664
• 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: 2019-05-23 00:24:41