The effects of cooling slope casting and isothermal treatment on wear behavior of A380 Alloy
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Date
2011
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Abstract
In this study, A380 aluminum alloy feedstock produced with cooling slope casting was exposed to isothermal treatment to obtain a globular microstructure which is a key feature for semisolid forming. The dendritic primary phase in the conventionally cast A380 alloy has readily transformed into a non-dendritic one in ingots cast over a cooling plate from pouring temperatures between 615, 630 and 650 °C. After the casting process, isothermal treatment was carried out at 565 °C in induction unit. Isothermal treatment yields a globular microstructure. To determine the tribological properties of this alloy, a pin-on-disc tribometer was used to carry out tribological tests under dry sliding conditions. The results showed that both cooling slope casting and isothermal treatment has an effect on tribological properties. © (2011) Trans Tech Publications, Switzerland.
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Aluminum alloys , Cerium alloys , Cooling , Metal castings , Microstructure , Tribology , Casting process , Conventionally casts , Cooling plates , Cooling slope casting , Cooling slopes , Dry sliding , Globular microstructure , Globular microstructures , Induction units , Isothermal treatment , Key feature , Pin on disc tribometer , Pouring temperatures , Primary phase , Semi-solid forming , Tribological properties , Tribological tests , Wear behaviors , Casting