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Materials Research

versión impresa ISSN 1516-1439versión On-line ISSN 1980-5373


CORREA, Edmilson Otoni; ALCANTARA, Nelson Guedes de; TECCO, Dorival Gonçalvez  y  KUMAR, Ramachandan Vasant. Thermodynamic simulation as an assistant tool in the development of iron based hardfacing materials. Mat. Res. [online]. 2007, vol.10, n.3, pp.315-319. ISSN 1516-1439.

A thermodynamic model was used to investigate the solidification of a hardfacing material in Fe-Cr-C-Nb system designated CNO, and developed for cladding components subjected to severe abrasive wear by welding. Microstructural characterization of the alloy showed that the theoretical simulations carried out to predict the amount and volume fraction of the phases using the module Scheil of MT-DATA Software gave very realistic results in the case of the rapid solidification of the hardfacing alloy CNO. The results obtained in this study indicate that the utilization of this tool may provide a good understanding of alloys solidification. As a consequence, it is possible to enable the refinement of alloy composition during the early stages of hardfacing materials development, leading to a decreasing of overall cost and time of manufacturing of hardfacing electrodes.

Palabras clave : development; hardfacing materials; thermodynamics simulations.

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