prikaz prve stranice dokumenta The impact of melt retention time on the strontium modification efficiency
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The impact of melt retention time on the strontium modification efficiency
U: CONFERENCE PROCEEDINGS MECHANICAL TECHNOLOGIES AND STRUCTURAL MATERIALS. / Jozić, Sonja; Lela, Branimir; Gjeldum, Nikola (ur.). Split: Hrvatsko društvo za strojarske tehnologije, 2021. str. 69-73. urn:nbn:hr:115:110920
Kozina, Franjo; Zovko Brodarac, Zdenka; Tubić Bulat, Barbara

Institucijski repozitorij: Repozitorij Metalurškog fakulteta Sveučilišta u Zagrebu

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Kozina, F., Zovko Brodarac, Z. i Tubić Bulat, B. (2021). The impact of melt retention time on the strontium modification efficiency. U S. Jozić, (Ur.), B. Lela, (Ur.), N. Gjeldum, (Ur.), CONFERENCE PROCEEDINGS MECHANICAL TECHNOLOGIES AND STRUCTURAL MATERIALS (str. 69-73). Split: Hrvatsko društvo za strojarske tehnologije. Preuzeto s https://urn.nsk.hr/urn:nbn:hr:115:110920

Kozina, Franjo, et al. "The impact of melt retention time on the strontium modification efficiency." CONFERENCE PROCEEDINGS MECHANICAL TECHNOLOGIES AND STRUCTURAL MATERIALS, Ur. Sonja Jozić, Ur. Branimir Lela, Ur. Nikola Gjeldum, Hrvatsko društvo za strojarske tehnologije, 2021, str. 69-73. https://urn.nsk.hr/urn:nbn:hr:115:110920

Kozina, Franjo, Zdenka Zovko Brodarac i Barbara Tubić Bulat. "The impact of melt retention time on the strontium modification efficiency." U CONFERENCE PROCEEDINGS MECHANICAL TECHNOLOGIES AND STRUCTURAL MATERIALS, 69-73. Split: Hrvatsko društvo za strojarske tehnologije, 2021. Citirano 27.11.2024.. https://urn.nsk.hr/urn:nbn:hr:115:110920

Kozina, F., Zovko Brodarac, Z. i Tubić Bulat, B. (2021) 'The impact of melt retention time on the strontium modification efficiency', u Jozić, S. (ur.), Lela, B. (ur.), Gjeldum, N. (ur.), CONFERENCE PROCEEDINGS MECHANICAL TECHNOLOGIES AND STRUCTURAL MATERIALS, Hrvatsko društvo za strojarske tehnologije, Split, str. 69-73. Preuzeto s: https://urn.nsk.hr/urn:nbn:hr:115:110920 (Datum pristupa: 27.11.2024.)

Kozina F, Zovko Brodarac Z, Tubić Bulat B. The impact of melt retention time on the strontium modification efficiency. U: S. Jozić, ur., B. Lela, ur., N. Gjeldum, ur. CONFERENCE PROCEEDINGS MECHANICAL TECHNOLOGIES AND STRUCTURAL MATERIALS. Split: Hrvatsko društvo za strojarske tehnologije; 2021. Str. 69-73. [pristupljeno 27.11.2024.] Dostupno na: https://urn.nsk.hr/urn:nbn:hr:115:110920

F. Kozina, Z. Zovko Brodarac i B. Tubić Bulat, "The impact of melt retention time on the strontium modification efficiency", CONFERENCE PROCEEDINGS MECHANICAL TECHNOLOGIES AND STRUCTURAL MATERIALS, S. Jozić, B. Lela i N. Gjeldum, Ur. Split: Hrvatsko društvo za strojarske tehnologije, 2021. [Online] Dostupno na: https://urn.nsk.hr/urn:nbn:hr:115:110920 [Citirano: 27.11.2024.]

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Podaci o radu
Naslov (engleski)The impact of melt retention time on the strontium modification efficiency
AutorFranjo Kozina
AutorZdenka Zovko Brodarac
AutorBarbara Tubić Bulat
UrednikSonja Jozić
UrednikBranimir Lela
UrednikNikola Gjeldum
Autorova ustanovaSveučilište u Zagrebu
Metalurški fakultet
(Zavod za procesnu metalurgiju)
(Laboratorij za željezo, čelik i ljevarstvo)
Znanstveno / umjetničko
područje, polje i grana		TEHNIČKE ZNANOSTI
Metalurgija
Procesna metalurgija
Sažetak (engleski)
The modification of eutectic (αAl+βSi) phase is frequently performed during processing of aluminum-silicone (Al-Si) based foundry alloys leading to a structural transformation of the eutectic βSi phase from a course plate to a fine fibrous morphology. The morphological refinement of the brittle eutectic βSi phase improves ductility, tensile strength, and elongation. This research was performed to estimate the influence of melt retention time on strontium (Sr) modification efficiency. For this purpose, the AlSi12 alloy with eutectic composition was produced and processed by the addition of AlSr10 master alloy. The samples for chemical, mechanical and microstructure analysis were taken with melt retention time of 20 min, 40 min and 80 min. The results of chemical composition analysis indicated the decrease in Sr content with the increase in melt retention time. The poor Sr recovery was a result of the subsequent addition of chemical degassing agents led to the gas entrapment in the melt. Consequently, the highest gas index and most severe porosities were found in sample with retention time of 20 min. The fully modified eutectic (αAl+βSi) phase morphology was only obtained in sample with retention time of 20 min. After melt retention time of 40 min the unmodified plate-like eutectic βSi phase particles were found. Additional prolongation of melt retention time to 80 min led to the coarsening of eutectic βSi phase particle. The plate-like eutectic βSi phase particles were located near the primary αAl dendritic network and surrounding the primary βSi phase particles. This phase distribution suggests that the transformation of the primary αAl dendritic network is followed by solidification of unmodified eutectic βSi phase particles.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov zbornikaCONFERENCE PROCEEDINGS MECHANICAL TECHNOLOGIES AND STRUCTURAL MATERIALS
Brojčani podacistr. 69-73
p-ISSN1847-7917
URN:NBNurn:nbn:hr:115:110920
Datum objave publikacije2021
SkupNaziv: 10 International Conference Mechanical Technologies and Structural Materials 2021
Kratica: MTSM 2021
Lokacija: Split, Hrvatska
Organizator: Hrvatsko društvo za strojarske tehnologije
Datum početka: 2021-09-09
Datum završetka: 2021-09-24
Vrsta izlaganja: Predavanje
URL dokumentahttp://www.strojarska-tehnologija.hr/#mtsm
Vrsta resursaTekst
IzdavačHrvatsko društvo za strojarske tehnologije
Mjesto izdavanjaSplit
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Datum i vrijeme pohrane2021-10-01 07:55:49