GRAIN REFINEMENT OF COMMERCIAL PURE ALUMINIUM BY ZIRCONIUM

Autor:	H. G. Gad Elrab, M. G. Mahfouz, A. E. Mahmoud, M.A. Doheim
Rok vydání:	2014
Předmět:	Zirconium Materials science chemistry Aluminium Metallurgy Alloy engineering chemistry.chemical_element engineering.material Grain size Refining (metallurgy) Holding time
Zdroj:	JES. Journal of Engineering Sciences. 42:1232-1241
ISSN:	2356-8550
DOI:	10.21608/jesaun.2014.115063
Popis:	The effect of Zr addition on the grain refinement of commercial pure aluminium (99.7%) has been investigated in the present study. The results showed that addition of up to 0.3wt. % Zr significantly decreases the average grain size of aluminium from 1100 µm to 162 µm at holding time of 90 seconds. The refining effect of zirconium is attributed to the presence of Al3Zr particles in Al-Zr master alloy. These particles are acting as effective heterogeneous nucleating sites for α-Al.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fc79674bb15074300d752970afc896b4 https://doi.org/10.21608/jesaun.2014.115063 Zobrazit plný text záznamu