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Influence of Nickel Addition on Properties of Secondary AlSi7Mg0.3 Alloy

Richtárech L., Bolibruchová D., Brůna M., Caiss J.

Archives of Foundry Engineering

2015

Vol. 15, iss. 2

95--98

This paper deals with influence on segregation of iron based phases on the secondary alloy AlSi7Mg0.3 microstructure by nickel. Iron is the most common and harmful impurity in aluminum casting alloys and has long been associated with an increase of casting defects. In generally, iron is associated with the formation of Fe-rich intermetallic phases. It is impossible to remove iron from melt by standard operations. Some elements eliminates iron by changing iron intermetallic phase morphology, decreasing its extent and by improving alloy properties. Realization of experiments and results of analysis show new view on solubility of iron based phases during melt preparation with higher iron content and influence of nickel as iron corrector of iron based phases.

Elimination of Iron Based Particles in Al-Si Alloy

Bolibruchová D., Richtárech L.

Archives of Foundry Engineering

2015

Vol. 15, iss. 1

9--12

This paper deals with influence on segregation of iron based phases on the secondary alloy AlSi7Mg0.3 microstructure by chrome. Iron is the most common and harmful impurity in aluminum casting alloys and has long been associated with an increase of casting defects. In generally, iron is associated with the formation of Fe-rich phases. It is impossible to remove iron from melt by standard operations, but it is possible to eliminate its negative influence by addition some other elements that affect the segregation of intermetallics in less harmful type. Realization of experiments and results of analysis show new view on solubility of iron based phases during melt preparation with higher iron content and influence of chrome as iron corrector of iron based phases. By experimental work were used three different amounts of AlCr20 master alloy a three different temperature of chill mold. Our experimental work confirmed that chrome can be used as an iron corrector in Al-Si alloy, due to the change of intermetallic phases and shortening their length.

Badanie fazy żelazowej w brązie aluminiowo-żelazowo-manganowym BA1032

Romankiewicz F., Romankiewicz R.

Archiwum Technologii Maszyn i Automatyzacji

2007

Vol. 27, nr 1

87-91

Badania fazy żelazowej w brązie aluminiowo-żelazowo-managanowym BA1032 wykazały złożony skład chemiczny wydzieleń tej fazy. Zawiera ona przeważnie 50-60% Fe, 25-35% Cu, 2-3% A1, 2-4% Mn i 3-6% Si.

Studies of ferric phase on bronze BA1032 revealed complex chemical constitution of compounds in this phase. It usually contains of 50-60% Fe, 25-35% Cu, 2-3% AL, 2-4% Mn and 3-6% Si.