Estudio morfológico, estructural y comportamiento corrosivo de la aleación fe-co-w obtenida por electrodeposición
La corrosión es un fenómeno natural que deteriora un material a consecuencia de un ataque electroquímico por su entorno. Una forma de mitigar o retardar el efecto de la corrosión en materiales metálicos ha sido el desarrollo de recubrimientos metálicos. La deposición de aleaciones de tungsteno con u...
- Autores:
-
Cajica Rusinke, Maria Camila
Prada Carvajal, Diego Oswaldo
- Tipo de recurso:
- http://purl.org/coar/version/c_b1a7d7d4d402bcce
- Fecha de publicación:
- 2016
- Institución:
- Universidad Industrial de Santander
- Repositorio:
- Repositorio UIS
- Idioma:
- spa
- OAI Identifier:
- oai:noesis.uis.edu.co:20.500.14071/34331
- Palabra clave:
- Electrodeposición
Corrosión
Fe-Co-W
Densidad De Corriente
Temperatura.
Corrosion is a natural phenomenon that deteriorates a material as a result of an electrochemical attack by their environment. One way to mitigate or delay the effects of corrosion in metallic materials has been the development of metallic coatings. Deposition of tungsten alloys with one or more metals of the iron group provides high corrosion resistance and good mechanical properties. In this paper
a Fe-Co-W ternary alloy was electrodeposited varying the applied cathodic current density (10-50 mA/cm2) and deposition temperature (20-60 °C). The coatings were structurally and morphologically characterized by studies of energy dispersive spectroscopy (EDX)
scanning electron microscopy (SEM) and X-ray diffraction (XRD). Finally
the operational parameters regarding cathodic current efficiency and corrosion resistance were optimized. A factorial design 22 was adequately employed for experimental design analysis of the results. The deposited obtained under conditions 50 mA/cm2 current density
60 °C temperature
30 rpm cathode rotation and 7.0 had an amorphous character and showed good adherence
high corrosion resistance and presence of nodules on its surface. Electrochemical corrosion tests verified that the Fe-Co-W alloy had better corrosion resistance than similarly electrodeposited Co-W amorphous alloy
- Rights
- License
- Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)