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The erosion behavior of austempered ductile irons austenized at different temperatures was studied. The results indicate that the erosion rate well correlates with the mechanical properties. At high impact angles, increasing ductility and mechanical energy density results in decreasing erosion rate, whereas increasing hardness reduces the erosion rate at low impact angles.
The influence of graphite nodules on the normal angle erosion of the spheroidal graphite cast irons with four different matrices, namely ferrite, upper bainite, lower bainite and martensite, was investigated. The results indicate that, in the range investigated (10–15 area pet), graphite nodules (with variations in area percent and size) did not exert any influence in the irons with ferrite or upper...
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