Abstract
Abrasive wear research has been conducted on ordered iron aluminide intermetallics. Pin-on-drum abrasive wear tests were performed on samples of varying long-range order. Wear surfaces were examined with optical microscopy, transmission electron microscopy (TEM), scanning electron microscopy and X-ray diffraction. The wear mechanism consisted of microplowing, micromachining and microfracture. Compositional variation near Fe 3Al and the degree of long-range ordering had only minor effects on the abrasive wear rates of iron aluminide samples. TEM analysis of the wear surfaces indicated that significant plastic deformation and recrystallization had occurred. The abrasive wear rates were compared with those of well-known abrasive wear-resistant materials.
Published Version
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