Fig. 1 Microstructures of (a) hyper-eutectic Al-15wt.%Si alloy and (b) gray cast iron
Fig. 2 XRD phase analysis results of Al-15wt.%Si alloy and gray cast iron
Fig. 3 Low magnification SEM images of (a) Al-15wt.%Si alloy, (b) gray cast iron and high magnification SEM-EDS results of (c) Al-15wt.%Si, and (d) gray cast iron
Fig. 4 Vickers hardness results for Al-15wt.%Si alloy, primary Si and gray cast iron
Fig. 5 Wear properties of Al-15wt.%Si and grey cast iron in engine oil environment with (a) wear loss, (b) wear volume and (c) wear rate
Fig. 6 SEM images showing worn out surface of (a) Al-15wt.%Si alloy (c) grey cast iron tested at 3kgf wear load, (b) Al-15wt.%Si alloy, (d) gray cast iron tested at 4kgf wear load
Fig. 7 SEM images showing etched worn out crosssectional areas of Al-15wt.%Si alloy ((a), (b)), and grey cast iron ((c), (d)) tested at 4kgf wear load
Fig. 8 EBSD analysis results of Al-15wt.%Si alloy ((a), (b)) and cast iron using ((c), (d)) tested at 4kgf wear load; (a),(c) inverse pole figures and (b),(d) image quality maps
Table 1 Chemical compositions of hyper-eutectic Al-Si alloy and gray cast iron used in this study
Table 2 Archimedes density measurement results of Al- 15wt.%Si alloy and gray cast iron
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