prikaz prve stranice dokumenta SEM analiza deformirane CuAlMnZr legure s prisjetiljivosti oblika
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master's thesis
SEM analiza deformirane CuAlMnZr legure s prisjetiljivosti oblika
Sisak: University of Zagreb, Faculty of Metallurgy, 2023. urn:nbn:hr:115:046537
Knežević, Dijana
University of Zagreb
Faculty of Metallurgy

Institutional repository: Repository of Faculty of Metallurgy University of Zagreb

Cite this document

Knežević, D. (2023). SEM analiza deformirane CuAlMnZr legure s prisjetiljivosti oblika (Master's thesis). Sisak: University of Zagreb, Faculty of Metallurgy. Retrieved from https://urn.nsk.hr/urn:nbn:hr:115:046537

Knežević, Dijana. "SEM analiza deformirane CuAlMnZr legure s prisjetiljivosti oblika." Master's thesis, University of Zagreb, Faculty of Metallurgy, 2023. https://urn.nsk.hr/urn:nbn:hr:115:046537

Knežević, Dijana. "SEM analiza deformirane CuAlMnZr legure s prisjetiljivosti oblika." Master's thesis, University of Zagreb, Faculty of Metallurgy, 2023. https://urn.nsk.hr/urn:nbn:hr:115:046537

Knežević, D. (2023). 'SEM analiza deformirane CuAlMnZr legure s prisjetiljivosti oblika', Master's thesis, University of Zagreb, Faculty of Metallurgy, accessed 23 November 2024, https://urn.nsk.hr/urn:nbn:hr:115:046537

Knežević D. SEM analiza deformirane CuAlMnZr legure s prisjetiljivosti oblika [Master's thesis]. Sisak: University of Zagreb, Faculty of Metallurgy; 2023 [cited 2024 November 23] Available at: https://urn.nsk.hr/urn:nbn:hr:115:046537

D. Knežević, "SEM analiza deformirane CuAlMnZr legure s prisjetiljivosti oblika", Master's thesis, University of Zagreb, Faculty of Metallurgy, Sisak, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:115:046537

Metadata
TitleSEM analiza deformirane CuAlMnZr legure s prisjetiljivosti oblika
AuthorDijana Knežević
MentorIvana Ivanić (mentor)
Committee memberMirko Gojić (predsjednik povjerenstva)
Committee memberIvana Ivanić (član povjerenstva)
Committee memberStjepan Kožuh (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Metallurgy
Sisak
Defense date and country2023-09-25, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Metallurgy
Abstract
Legure s prisjetljivosti oblika (eng. ShapeMemoryAlloys- SMA) su vrlo važni inženjerski metalni materijali, koji su zbog svojih poboljšanih svojstava zastupljeni u brojnim područjima istraživanja.U diplomskom radu prikazana je mikrostrukturna analiza deformirane CuAlMnZr legure s prisjetljivosti oblika koja je dobivena postupkom lijevanja u grafitnu kokilu te kovanjem u šipke promjera 13 mm. Na uzorcima je provedena i toplinska obrada zagrijavanjem na 850 °C u trajanju od 30 minuta te hlađenjem u vodi do sobne temperature. Mikrostrukturna analiza lijevanog i kovanog stanja CuAlMnZr legure provedena je svjetlosnom i pretražnom elektronskom mikroskopijom, dok je mikrostrukturna analiza nakon toplinske obrade provedena pretražnom elektronskom mikroskopijom. Rezultati su pokazali da uzorci nakon kovanja posjeduju dvofaznu (α+β) mikrostrukturu, dok je nakon toplinske obrade utvrđena martenzitna mikrostruktura. Cirkonij se kao legirajući element pojavljuje u obliku uključaka što dovodi do zaključka da se nije u potpunosti homogenizirao u talini.
Abstract (english)
Shape memory alloys (SMA) are very important engineering metal materials, which are present in numerous research areas due to their improved properties. This paper presents the microstructural analysis of a deformed CuAlMnZr shape memory alloy casting into a graphite mold and forging into 13 mm diameter bars. The samples were heat treated by heating at 850 °C for 30 minutes and then cooling in water to room temperature. Microstructural analysis of the CuAlMnZr alloy in the as-cast and forged states was performed by light and scanning electron microscopy, while microstructural analysis after heat treatment was performed by scanning electron microscopy. The results showed that after forging, the samples exhibit a two-phase (α + β) microstructure, while after heat treatment, a martensitic microstructure was determined. As an alloying element, zirconium appears in the form of inclusions, suggesting that it was not completely homogenized in the melt.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:115:046537
Study programmeTitle: Graduate study program Metallurgy
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka metalurgije (magistar/magistra inženjer/inženjerka metalurgije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2023-09-15 09:54:58