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NE-Metallgusswerkstoffe
Dokumenten-Nummer: 57791
Zeitschriftenaufsatz
Luo, Q.; Cai, Q. Z.; Fan, Z. T.; Zhao, Z.
Publikationssprache: Englisch
Effects of Y on microstructure and property of heat treated AZ91D magnesium alloy prepared by lost
foam casting process
Einfluss von Yttrium auf die Mikrostruktur und Eigenschaften der wärmebehandelten und im Vollformgießverfahren
hergestellten Magnesiumlegierung AZ91D
As cast AZ91D and AZ91D+1.0 wt-%Y magnesium alloy were prepared by the lost foam casting process and then
treated by solution and aging treatment. The effects of Y on the microstructure and mechanical properties of heat
treated AZ91D magnesium alloy were investigated. The results show that the addition of Y to AZ91D alloy formed the
Al2Y phase, which still existed after solution treatment. During the aging treatment process, the rate of beta -Mg17Al12
phase precipitating in AZ91D+1.0 wt-%Y alloy was much slower than in AZ91D alloy because the formation of Al2Y
phase led to the depletion of Al atoms. The addition of Y was thus claimed to play a key role in delaying the age
hardening peak on AZ91D alloy.
Huazhong University of Science and Technology, Wuhan, CN
International Journal of Cast Metals Research
Erscheinungsjahr 2012
Heftnummer 6
S. S.341-346
Seiten/Bilder/Tabellen/Quellen: 6S,10B,1T,20Q
NE-Metallgusswerkstoffe
Dokumenten-Nummer: 57795
02 Publikationssprache: Englisch
Olofsson, J.
Simulation of mechanical behaviour of cast aluminium components
Simulation des mechanischen Verhaltens von Bauteilen aus Aluminiumguss
A literature review on methods to consider the mechanical behaviour of cast aluminium alloys in finite element method
(FEM) simulations of cast aluminium components has been performed. The mechanical behaviour is related to several
microstructural parameters achieved during the casting process. Three different methods to consider these
microstructural parameters are introduced. One method predicts the mechanical behaviour of the component using
casting process simulation software. The other two methods implement numerical models for the mechanical behaviour
of cast aluminium into the FEM simulation. Applications of the methods are shown, including combinations with
statistical methods and geometry optimisation methods. The methods are compared, and their different strengths and
drawbacks are discussed.
Jönköping University, SE
International Journal of Cast Metals Research
Erscheinungsjahr 2012
Heftnummer 6
S. S.319-327 (9 Seiten, 7 Bilder, 72 Quellen)
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