Electromagnetically induced segregation for generation of a gradient microstructure in aluminium castings

verfasst von: Julio Aguilar, Claudius Gruneberg, Bernd Sommer, Jurgen Niehues, Michael Hairmerl, Bernard Nacke, Markus Langejurgen
Abstract: The electromagnetic induced segregation (EIS) technology allows an effective segregation of silicon crystals at the surface of cylinder bores. The Si-content of the used hypereutectic alloy could be reduced without changing properties of the surface. The numerical model allows the calculation of electrical data of the inductor system to dimension the transformers for current, power and voltage. The power induced into the melt is also calculated to be taken into account during simulation of the solidification. An essential parameter of the inductor system is the frequency of the current. In the field of induction heating, induction melting, induction hardening and crystal growing, the frequencies from several hundreds of Hz up to a few MHz are used. With suitable casting parameters it is possible to produce cylinder surfaces by electromagnetic induced segregation that is on a par with common cylinder surfaces.
Organisationseinheit(en): Institut für Elektroprozesstechnik
Externe Organisation(en): KS ATAG GmbH
ACCESS e.V.
Bayerische Motoren Werke AG
Typ: Artikel
Journal: Foundry Trade Journal
Band: 184
Seiten: 54-58
Anzahl der Seiten: 5
ISSN: 0015-9042
Publikationsdatum: 2010
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Maschinenbau, Strategie und Management, Wirtschaftsingenieurwesen und Fertigungstechnik, Metalle und Legierungen

BibTeX

@article{fc4941212c064bd3885f1e85f9c28b45,
title = "Electromagnetically induced segregation for generation of a gradient microstructure in aluminium castings",
abstract = "The electromagnetic induced segregation (EIS) technology allows an effective segregation of silicon crystals at the surface of cylinder bores. The Si-content of the used hypereutectic alloy could be reduced without changing properties of the surface. The numerical model allows the calculation of electrical data of the inductor system to dimension the transformers for current, power and voltage. The power induced into the melt is also calculated to be taken into account during simulation of the solidification. An essential parameter of the inductor system is the frequency of the current. In the field of induction heating, induction melting, induction hardening and crystal growing, the frequencies from several hundreds of Hz up to a few MHz are used. With suitable casting parameters it is possible to produce cylinder surfaces by electromagnetic induced segregation that is on a par with common cylinder surfaces.",
author = "Julio Aguilar and Claudius Gruneberg and Bernd Sommer and Jurgen Niehues and Michael Hairmerl and Bernard Nacke and Markus Langejurgen",
year = "2010",
language = "English",
volume = "184",
pages = "54--58",
journal = "Foundry Trade Journal",
issn = "0015-9042",
publisher = "DMG World Media (UK) Ltd.",
number = "3672",
}