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Possibilities of the quantitative characterization of intermetallic phases in the cast structure of aluminium alloys
Author(s) -
Griger Á.,
Lendvai A.,
Stefániay V.,
Turmezey T.,
Hidvégi É.
Publication year - 1985
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170200423
Subject(s) - intermetallic , aluminium , metallurgy , materials science , casting , alloy , characterization (materials science) , impurity , silicon , crystallization , aluminium alloy , chemical engineering , chemistry , nanotechnology , organic chemistry , engineering
The quality and quantity of intermetallic compounds in a commercial aluminium alloy based on 99.5% Al purity are responsible for the final properties of products. Compositional and spatial distribution of intermetallics in the matrix are determined besides the chemical composition by the circumstances of solidification fixed with casting conditions. Therefore in order to get a cast structure, corresponding to the quality favourable in further processing, the casting process should be controlled in accordance with the formation of intermetallic compounds. The main and unavoidable impurities in aluminium alloys are iron and silicon. Quality demand requires, however, iron and silicon to be considered as alloying elements. Methods used in the investigations of AlFe and AlFeSi phases in function of crystallization are reported in this paper.