Effects of Casting Conditions on the Structure and Magnetic Properties of the Co-19 at.%Al-6 at. %W Alloy

Autor:	D. A. Shishkin, N. N. Stepanova, E. P. Romanov, M. B. Rigmant, D. I. Davidov, N. V. Kazantseva
Rok vydání:	2015
Předmět:	Materials science Alloy Metallurgy Intermetallic chemistry.chemical_element Induction furnace engineering.material Casting chemistry Magnetic shape-memory alloy visual_art visual_art.visual_art_medium engineering Ceramic Ingot Cobalt
Zdroj:	Characterization of Minerals, Metals, and Materials 2015 ISBN: 9783319486017 Characterization of Minerals, Metals, and Materials 2015 Scopus-Elsevier
DOI:	10.1007/978-3-319-48191-3_47
Popis:	The Co-19 at.%Al-6 at.%W alloy was prepared by two methods of casting. We used arc melting under an argon atmosphere with casting into a copper water-cooled casting mold and induction melting furnace with casting into a ceramic Al2O3 mold. According to the X-ray and SEM analyses, phase compositions depend on the cooling rate of the ingot after melting. After arc melting, the cast alloy has a three-phase structure, consisting of γ cobalt (FCC), intermetallic phases CoAl (B2) type, and Co3W (DO19) type. After the induction melting, the alloy has a three-phase structure, consisting of γ cobalt (FCC), intermetallic phases CoAl (B2) type, and Co7W6 (µ) type. All phases in the investigated ternary alloy at the room temperature are ferromagnetic. Curie temperatures of all obtained phases were defined. It is shown that the magnetic properties of the studied alloy are typical for soft magnetic materials.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5beaf2baed784adb7cee1fa7a27d082 https://doi.org/10.1007/978-3-319-48191-3_47 Zobrazit plný text záznamu