Resumen

ROJAS-MOLANO, Héctor Fernando; OLAYA-FLOREZ, Jhon Jairo  y  MOLINA-GONZALEZ, Cesar Andrés. Morphological Characterization of Coatings 140MXC-530AS and 140MXC-560AS Using the Electric Wire Arc-Spraying Process. Ing. invest. y tecnol. [online]. 2016, vol.17, n.1, pp.1-13. ISSN 2594-0732.

In this study were produced the 140MXC-530AS and 560AS 140MXC-coatings, whose characteristics correspond to nanostructured materials (140MXC) and conventional materials such as carbon steel (530AS) and stainless steel (560AS). This coatings were applied on a substrate of AISI-SAE 4340, through the technique of electric wire arc spraying, considering the deposition parameters such as current (I), voltage (V), primary air pressure (AP) and secondary pressure air (AS) using a fractional-factorial design L9(34-2) of Taguchi. The characterization of the mixtures were performed by the techniques of X-ray fluorescence (XRF), conventional optical microscopy (COM), scanning electron microscopy (SEM), atomic force microscopy (AFM) and microhardness. These results was analyzed in terms of the thickness, microhardness, and particle size of semi-molten coating obtained roughness.

Palabras llave : characterization; coatings; thermal spraying; Taguchi design.