INTECIN   20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
artículos
Título:
Effect of Welding Parameters on Nanostructured Fe-(C, B)-(Cr, Nb) Alloys
Autor/es:
A. GUALCO; H. G. SVOBODA; J. GRAMAJO
Revista:
MATERIALS RESEARCH
Editorial:
UNIV FED SAO CARLOS
Referencias:
Año: 2019 vol. 22
ISSN:
1516-1439
Resumen:
New nanostructured Fe-(Nb,Cr)-(C,B) multicomponent alloys have been developed forhardfacing application. They have better wear resistance than traditional Fe-Cr-C alloys. The nanoalpha-Fe, eutectic and hard carboborides phases of the weld metal usually show variations withthe welding procedure. 6 test samples with different heat input were welded. It was observed thatthe percentage of eutectic phase and the distance between carboborides increased for the high heatinput. Microhardness of eutectic phases showed a linear relationship with the spacing. Sampleswith high percentage of alpha-Fe phases showed a severe plastic deformation. Wear resistance wasoptimal for thinner eutectics phases. The presence of needles carboborides improved wear resistance.