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  • 1
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 141-143 (July 2008), p. 237-242 
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: The correlation between the evaluation of the mechanical and of the fatigue behaviour ofthe rheocast, T5 and T6 heat treated SSM A356 aluminium alloy with respect to the microstructuresof the component has been investigated. The study has been carried out on a suspension arminjected in a rheocasting 800 tons plant in Stampal S.p.A. The new rheocasting is a process thatallows obtaining the alloys in a semisolid state directly from the liquid state, by controlled coolingof the molten alloys. The resulting microstructures are very fine, free from defects andhomogeneous: these characteristics improve the mechanical properties of the alloys and speciallythe response to cyclic stress, an important issue for a suspension component. After a preliminarytensile test analysis, axial high frequency fatigue tests have been carried out at room temperature onspecimen cut out from the suspension arm to determine the Wöhler curve and the number of cyclesto failure. The results of this work allow a comparison of the effects of heat treatment process, T5 orT6, on Semi-Solid components for industrial applications in the automotive field.On the basis of these analysis the correlation between microstructure and mechanical performancescan be established
    Type of Medium: Electronic Resource
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