Correlation between microstructure and mechanical properties of al-si cast alloys.

Content Provider	CiteSeerX
Author	Grosselle, F. Bonollo, F. Tiziani, A. Corte, E. Della
Abstract	The influence of microstructure and process history on mechanical behaviour of cast Al-Si alloys is reported. In the present work, the EN-AC 46000 and 46100 aluminium alloys have been gravity cast using a step-bar permanent mould, with a range of thickness going from 5 to 20 mm. Metallographic and image analysis techniques have been used to quantitatively examine the microstructural parameters of the α-Al phase and eutectic Silicon. Microstructure has been also correlated with the results coming from the numerical simulation of the casting process. The results show that SDAS and length of eutectic silicon particles increase with section thickness, and consequently mechanical properties decrease.
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Subject Keyword	Numerical Simulation Eutectic Silicon Mechanical Behaviour Image Analysis Technique Microstructural Parameter Al Phase Eutectic Silicon Particle Increase Cast Al-si Alloy Mechanical Property Decrease Section Thickness Step-bar Permanent Mould Present Work Gravity Cast Process History Aluminium Alloy Casting Process
Content Type	Text