INVESTIGADORES
SVOBODA Hernan Gabriel
artículos
Título:
Wear resistance of Fe-based nanostructured hardfacing
Autor/es:
A. GUALCO, C. MARINI, E. S. SURIAN; H. G. SVOBODA
Revista:
Procedia materials science
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2015 vol. 8 p. 934 - 943
ISSN:
2211-8128
Resumen:
The purpose of this work was to study the microstructural evolution and wear resistance of a nanostructured iron-based alloy deposited by FCAW process. Two samples with one and two layers were welded under Ar-20CO2 shielding and heat input of 3.5 kJ/mm. Chemical composition was determined and microstructure was studied using both optical and electronic microscopy and X ray diffraction. Microhardness, cristallite size, percentage of dilution and abrasive wear resistance were measured. The microhardness of the deposit was found between 800 and 920 HV2, depending on the number of layers as well as the chemical composition of the samples. The wear test results were discussed in relation to chemical composition, microstructure and microhardness.
