prikaz prve stranice dokumenta Mikrostrukturna karakterizacija CuAlMn trake s prisjetljivosti oblika
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undergraduate thesis
Mikrostrukturna karakterizacija CuAlMn trake s prisjetljivosti oblika
Sisak: University of Zagreb, Faculty of Metallurgy, 2016. urn:nbn:hr:115:623595
Bogeljić, Ivan
University of Zagreb
Faculty of Metallurgy

Institutional repository: Repository of Faculty of Metallurgy University of Zagreb

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Bogeljić, I. (2016). Mikrostrukturna karakterizacija CuAlMn trake s prisjetljivosti oblika (Undergraduate thesis). Sisak: University of Zagreb, Faculty of Metallurgy. Retrieved from https://urn.nsk.hr/urn:nbn:hr:115:623595

Bogeljić, Ivan. "Mikrostrukturna karakterizacija CuAlMn trake s prisjetljivosti oblika." Undergraduate thesis, University of Zagreb, Faculty of Metallurgy, 2016. https://urn.nsk.hr/urn:nbn:hr:115:623595

Bogeljić, Ivan. "Mikrostrukturna karakterizacija CuAlMn trake s prisjetljivosti oblika." Undergraduate thesis, University of Zagreb, Faculty of Metallurgy, 2016. https://urn.nsk.hr/urn:nbn:hr:115:623595

Bogeljić, I. (2016). 'Mikrostrukturna karakterizacija CuAlMn trake s prisjetljivosti oblika', Undergraduate thesis, University of Zagreb, Faculty of Metallurgy, accessed 11 July 2024, https://urn.nsk.hr/urn:nbn:hr:115:623595

Bogeljić I. Mikrostrukturna karakterizacija CuAlMn trake s prisjetljivosti oblika [Undergraduate thesis]. Sisak: University of Zagreb, Faculty of Metallurgy; 2016 [cited 2024 July 11] Available at: https://urn.nsk.hr/urn:nbn:hr:115:623595

I. Bogeljić, "Mikrostrukturna karakterizacija CuAlMn trake s prisjetljivosti oblika", Undergraduate thesis, University of Zagreb, Faculty of Metallurgy, Sisak, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:115:623595

Metadata
TitleMikrostrukturna karakterizacija CuAlMn trake s prisjetljivosti oblika
Title (english)Microstructural characterization of CuAlMn shape memory ribbon
AuthorIvan Bogeljić
MentorStjepan Kožuh (mentor)
Committee memberMirko Gojić (predsjednik povjerenstva)
Committee memberStjepan Kožuh (član povjerenstva)
Committee memberTamara Holjevac-Grgurić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Metallurgy
Sisak
Defense date and country2016-09-23, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Metallurgy
Physical Metallurgy
Abstract
Zbog svojih dobrih svojstava, posebice duktilnosti, CuAlMn slitine s prisjetljivosti oblika bi mogle imati široku tehničku primjenu. U ovom radu je prikazana mikrostrukturna analiza CuAlMn slitine s prisjetljivosti oblika nakon taljenja (ingot) i lijevanja (brzo skrutnuta traka). Slitina kemijskog sastava Cu – 8,96% Al – 7,08 % Mn (mas. %) je pripremljena iz čistih metala a potom i lijevana tehnikom „melt spinning“ u inertnoj atmosferi argona. Najprije je dobiven ingot mase 684 g i dimenzija ø45x55 mm koji je korišten kao ulazni materijal za lijevanje. Mikrostruktura slitine analizirana je optičkom mikroskopijom i pretražnom elektronskom mikroskopijom. Također, mjerenjem električnog otpora ustanovljene su mikrostrukturne promjene u brzoskrutnutim trakama. Metalografska analiza ingota je potvrdila postojanje dvofazne mikrostrukture (α+ β), dok je u brzo skrutnutim trakama zamijećeno postojanje martenzita. Rezultati mjerenja električnog otpora i DSC analiza pokazuju faznu transformaciju koja može biti povezana s formiranjem precipitata ravnotežne α– faze i sređivanja austenitne strukture.
Abstract (english)
Because of their good characteristics, especially ductility, CuAlMn shape memory alloys could have wide application in engineering. In this paper, microstructural analysis of CuAlMn shape memory alloys after smelting (ingot) and casting (rapidlysolidified ribbon) is shown. Alloy with the chemical composition of Cu – 8.96 Al – 7.08 %Mn (wt. %) was prepared from pure metals and then the alloy was casted by melt spinning tehnique, under inert argon atmosphere. The prepared ingot weight was 684 g and dimensions of ø45x55 mm and it was used as an input material for casting. The microstructure of the alloy was analysed with optical microscopy and scanning electron microscopy. Also, by measuring the electrical resistance in the rapidly solidified ribbons, the microstructural changes were determined. Metallographic analysis of ingot confirmed the existence oftwo-phase microstructure (α+ β), while rapidly solidified ribbons substantiate the existence of martensite. Measurements of the electrical resistance showed a phase transformation which canbe associated with the formation of precipitates of the equillibrium α– phase and with order – disorder transition of austenite.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:115:623595
ProjectNumber: IP-2014-09-3405
Title: Dizajniranje mikrostrukture i funkcionalnih svojstava legura s prisjetljivosti oblika na bazi bakra
Acronym: DMFP-CuSMA
Leader: Mirko Gojić
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: IP
Study programmeTitle: Metallurgy; specializations in: Metallurgical Engineering, Industrial Ecology
Course: Metallurgical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteOvaj je rad financirala Hrvatska zaklada za znanost projektom IP-2014-09-3405.
Created on2016-09-30 09:07:02