The effect of sodium and strontium on modification of eutectic silicon

Scientific paper - Conference Proceedings Article (invited lecture)

• Author: Franjo Kozina
• Author: Zdenka Zovko Brodarac
• Author: Barbara Tubić
• Author: Natalija Dolić
• Author's institution: University of Zagreb; Faculty of Metallurgy
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Metallurgy

Abstract (english)

Modification of eutectic (αAl+βSi) is usually performed during treatment of Al-Si based alloys in order to obtain higher mechanical properties. Chemical modification is usually performed using modifying elements such as Na and Sr. The research was performed in order to estimate the efficiency of Na and Sr additions in eutectic AlSi12 alloy using chemical analysis, simple thermal analysis (STA) and metallographic analysis. The metallographic analysis revealed fully modified (αAl+βSi) eutectic microstructure in alloy treated with Na. The Sr additions widened solidification interval and, lowered the eutectic area temperatures as indicated by STA.

• Keywords (english): AlSi12; sodium; strontium; eutectic (αal + βsi); modification
• Language: english
• Publication type: Scientific paper - Conference Proceedings Article (invited lecture)
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Publication title: 51st International October Conference on Mining and Metallurgy Proceedings
• Numbering: pp. 48-51
• ISBN: 978-86-6305-101-0
• URN:NBN: urn:nbn:hr:115:166495
• Publication: 2019
• Conference: Title: 51st International October Conference on Mining and Metallurgy; Location: Bor, Serbia; Start date: 2019-10-16; End date: 2019-10-19; Assembly type: Lecture
• Document URL: http://bib.irb.hr/1028171
• Type of resource: Text
• Publisher: Sveučilište u Beogradu Tehnički fakultet u Boru
• Publishing place: Borsko Jezero
• Access conditions: Open access
• Created on: 2019-11-05 09:34:41