Preliminary communication

Crystallization and structure of cast A390.0 alloy with melt overheating temperature

J. Piątkowski ; The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland
B. Gajdzik ; The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland
T. Matuła ; Silesian University of Technology, Katowice, Poland (student)

Abstract

The paper presents the research on the influence of melt overheating temperature on crystallization parameters and primary structure of cast AlSi17Cu5Mg (A390.0) alloy overheated to temperature: 820 °C, 880 °C, 940 °C and 1 000 °C. It was found that the degree of overheating influences the change of microstructure significantly and morphologies of primary silicon of the castings from Al-Si alloys. Research has shown that the overheating of the liquid metal bath is one of the methods of finding more applications of hypereutectic Al-Si system alloys without the addition of modifiers.

Keywords

cast Al-Si Alloy; crystallization; structure; melt overheating temperature

Hrčak ID:

80853

URI

https://hrcak.srce.hr/80853

Publication date:

1.7.2012.

Article data in other languages: croatian

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