Analiza mikrostrukture keltskog mača

Živčić, Ivančica (2016) Analiza mikrostrukture keltskog mača. = Microstructure analysis of the Celtic sword. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Rede, Vera.

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Abstract (Croatian)

Svrha ovog rada bila je analiza pronađenog uzorka arheološkog artefakata (mača) s ciljem dobivanja informacija o proizvodnom procesu i osnovnom materijalu. U teorijskom dijelu opisana je važnost i značaj analize mikrostrukture u okviru karakterizacije materijala. U eksperimentalnom dijelu provedena je analiza mikrostrukture poprečnog presjeka keltskog mača pomoću optičkog mikroskopa i EDS analizom pretražnim elektronskim mikroskopom. Analiza je provedena u poliranom i nagriženom stanju. Otkrivena je nehomogenost mikrostrukture koja ovisi o početnom sastavu rude, pougljičavanju i termomehaničkoj obradi. Posebna pozornost posvećena je nemetalnim uključcima koji se razlikuju po veličini i obliku, što ovisi o termomehaničkoj obradi te o sastavu. Analizirani su ostaci osnovne mikrostrukture u oksidnom sloju na površini mača iz kojeg je vidljiva duh mikrostruktura. Zbog zahvaćenosti korozijom nije bilo moguće otkriti početnu mikrostrukturu na oštrici mača.

Abstract

The subject matter of this thesis was to analyze archeological artefact (sword) in order to obtain informations about manufacturing proces and initial material. In the theoretical part it is described the importance of the microstructure analysis within material characterization. In experimental part the microstructure was analysed with optical and EDS scanning electrone micoscropy. It is discovered inhomogeneity of microstructure which depends about initial composition of the ore, carburising and termomechanical process. The important part was observation of non-metallic inclusions that vary in size and shape depending on the thermomechanical processing and the composition. From analyzed initial microstructure in oxyd layer on the sword surface there is visible ghost microstructure. The initial microstructure on the edge of the sword was not possible to detect because of the involvement of corrosion.

Item Type:	Thesis (Master's thesis (Bologna))
Uncontrolled Keywords:	analiza mikrostrukture; keltski mač; EDS analiza; nemetalni uključci
Keywords (Croatian):	microstructure analysis; Celtic sword; EDS analysis; non-metallic inclusions
Subjects:	TECHNICAL SCIENCE > Mechanical Engineering
Divisions:	1000 Department of Materials > 1010 Chair of Materials and Tribology
Date Deposited:	12 May 2016 08:18
Last Modified:	12 May 2016 08:18
URI:	http://repozitorij.fsb.hr/id/eprint/5793

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