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Ductile iron containing ∼3.5wt.% C and 2.1–4.2wt.% Si (2.1, 2.8 and 4.2wt.%) was studied. Three sets of specimens with differing Si contents were made into austempered ductile iron (ADI) and pearlite ductile iron (PDI) through heat treatment. These specimens were then eroded with Al 2 O 3 particles and SiO 2 particles of 275–295μm grit size to understand the relationship between...
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...
Two spheroidal graphite cast irons of the same composition (Fe 3.54wt.%-C 2.48wt.%-Si) and different graphite nodule counts were surface hardened by plasma transferred arc surface remelting. They were then eroded by angular SiO 2 particles (~295μm grit size) under two average particle velocities including ~36 and ~66ms -1 . According to the results, the presence of eutectic Fe...
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