Poboljšanje procesa difuzijskog stvaranja karbidnih slojeva

Goršćak, Đurđica (2004) Poboljšanje procesa difuzijskog stvaranja karbidnih slojeva. = Improvement of the process of diffusion formation of the carbide layers. Scientific master's thesis , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Stupnišek, Mladen.

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17_02_2006_Gorscak_mr.pdf - Published Version Jezik dokumenta:Croatian

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Abstract (Croatian)

U radu su postavljeni fizikalni principi za odvijanje procesa pougljičavanja te su analizirani utjecaji pojedinih parametara na debljinu pougljičenog sloja te na njegovu kvalitetu. Umjesto modela koji se temelji na difuziji temeljem razlike u koncentracijama, postavljen je model koji se temelji na aktivnosti ugljika. Utvrđeno je da dobiveni rezultati dobro odgovaraju postavljenom matematičkom modelu postupka pougljičavanja te se stoga izrađeni računalski program može upotrijebiti za praćenje mehanizama postupka pougljičavanja te analizu utjecaja parametara na ekonomičnost postupka kao i na dubinu i kvalitetu dobivenih slojeva, a time i za definiranje parametara kod upravljanja procesom pougljičavanja.

Abstract

In the work, physical principles for managing the carburizing process have been established. The influence of the particular parameters to the depth of the carburized layer and to its quality have been analyzed. Instead of the model based on diffusion due to difference in concentrations, a model based on diffusion due to difference in carbon activity has been established. It has been proven that the results match the mathematical model of the carburizing process. Therefore, the computer program can be used for monitoring of the carburizing process mechanism and for analysis of influence of the parameters on process efficacy as well as on the process capability and on the quality of the obtained layers. Therefore, it can be used for defining of parameters for running of the carburizing process.

Item Type: Thesis (Scientific master's thesis)
Uncontrolled Keywords: pougljičavanje; aktivnost ugljika; matematički model; difuzija; karbidni slojevi
Keywords (Croatian): carburizing; carbon activity; mathematical model; diffusion; carbide layers
Divisions: 1000 Department of Materials > 1020 Chair of Heat Treatment and Surface Engineering
Date Deposited: 22 Sep 2014 18:00
Last Modified: 16 Oct 2015 13:19
URI: http://repozitorij.fsb.hr/id/eprint/22

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