Estudio del comportamiento frente a la corrosión de las capas pasivas formadas sobre las aleaciones amorfas Fe-Gr-Ni-(Si, P, B)

M. F. López; M. L. Escudero; E. Vida; A. R. Pierna; F. F. Marzo; A. Lorenzo

doi:10.3989/revmetalm.1996.v32.i6.884

Corrosion study of the passive film of amorphous Fe-Cr-Ni-(Si, P, B) alloys

Authors

M. F. López Centro Nacional de Investigaciones Metalúrgicas (CSIC)
M. L. Escudero Centro Nacional de Investigaciones Metalúrgicas (CSIC)
E. Vida Dpto. de Ingeniería Química y del Medio Ambiente. Univ. del País Vasco. E.U.I.T.I. de San Sebastián
A. R. Pierna Dpto. de Ingeniería Química y del Medio Ambiente. Univ. del País Vasco. E.U.I.T.I. de San Sebastián
F. F. Marzo Dpto. de Ingeniería Química y del Medio Ambiente. Univ. del País Vasco. E.U.I.T.I. de San Sebastián
A. Lorenzo Dpto. de Ingeniería Química y del Medio Ambiente. Univ. del País Vasco. E.U.I.T.I. de San Sebastián

DOI:

https://doi.org/10.3989/revmetalm.1996.v32.i6.884

Keywords:

Amorphous alloys, Corrosion, EIS, Photoemission, Passive layer

Abstract

Amorphous Fe₆₂Cr₁₀Ni₈X₂₀ (X = P, B, Si) alloys in 0.01M HCl solution have been investigated by means of standard electrochemical measurements in order to evaluate their corrosion resistance. The study reveals that the best corrosion behaviour is given by the Si containing amorphous alloy. X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AJES) have been employed to study the composition of the passive layers, formed on the surface of the different amorphous alloys. The results on Fe₆₂Cr₁₀Ni₈X₂₀ show that a protective passive film, mainly consisting of oxidized chromium, greatly enhances its corrosion resistance.

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Published

1996-12-30

How to Cite

López, M. F., Escudero, M. L., Vida, E., Pierna, A. R., Marzo, F. F., & Lorenzo, A. (1996). Corrosion study of the passive film of amorphous Fe-Cr-Ni-(Si, P, B) alloys. Revista De Metalurgia, 32(6), 375–380. https://doi.org/10.3989/revmetalm.1996.v32.i6.884

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Issue

Vol. 32 No. 6 (1996)

Section

Articles

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