Influence of silicon content and heat treatment on wear resistance of white chromium cast irons under high speed solidification conditions
DOI:
https://doi.org/10.3989/revmetalm.1205Keywords:
White chromium cast iron, Heat treatment, Abrasive wear, Dry frictionAbstract
The influence of silicon content and heat treatment on microstructure, abrasive and dry friction wear resistance of a 3 % C, 12 % Cr cast iron, under fast solidification conditions is studied. The fast solidification condition diminishes the carbide volume and the silicon content increases their dispersion and finesses. All matrixes obtained were perlitics, whit different finesses. No intermediate transformation products were noticed. Hardness had little variation. Austenization treatment show little affectivity, with tendency to increase wear in reference to as cast and maintenance treatments. Behavior under dry friction and abrasive wear were similar under test conditions applied whit more influence of carbide morphology in the abrasive wear conditions.
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