Remelting Studies on Cast Aluminium Graphite Composites / Umschmelzversuche an gegossenen Aluminium-Graphit- Verbundwerkstoffen

Autor:	B. C. Pai, H. Srinivasa Rao, R. Manoj, P. L. Vinod, S. S. Sreekumar
Rok vydání:	1994
Předmět:	Materials science Economies of agglomeration Metallurgy Composite number Metals and Alloys Condensed Matter Physics Microstructure Isothermal process Electronic Optical and Magnetic Materials Mechanics of Materials Casting (metalworking) Nitrogen gas Graphite Inclusion (mineral)
Zdroj:	Practical Metallography. 31:190-198
ISSN:	2195-8599 0032-678X
DOI:	10.1515/pm-1994-310405
Popis:	The effect of remelting and casting on microstructure and mechanical properties of Al-12Si-3Mg/3 graphite composites is investigated. The composite was either remelted fours times or isothermally held at the casting temperature followed by casting with and without degassing using a stream of nitrogen gas. It was observed that the composites can be remelted and cast two times or held isothermally around 993 K for 3 to 4 h without affecting the mechanical properties. Remelting reduced the agglomeration of graphite particles but increased the gas entrapment and inclusion levels. At contact time exceeding about 4 h with molten Al, reaction zones were seen around the particles. The degassing had no effect on the mechanical properties. (orig.)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f9b2d752f9ba78637d9fa77d05fb39a6 https://doi.org/10.1515/pm-1994-310405 Zobrazit plný text záznamu