Artículo
Abstract:
The electrochemical behaviour of 316 stainless steel was studied in nearly neutral electrolytes containing NaCl in the - 3 to 50°C temperature range, using potentiostatic and potentiodynamic techniques. Special attention was paid to both the current fluctuations previous to the irreversible breakdown of the passive film and to the breakdown potential. No pitting was observed at temperature lower than 0°C. In the 0-15°C range the breakdown potential shifts slightly in the negative direction. Between 15 and 25°C a remarkable decrease in the breakdown potential was observed whereas in the 25-50°C range it remained practically constant. The temperature dependence of the breakdown potential correlates closely with the temperature dependence of the Cr(III) to soluble Cr(VI) electrooxidation current. This suggests that the depletion of Cr(III) and surrounding water with increasing temperature decreases the capability of self-repair of the passive film. Conversely, the increase in temperature produces a thicker and more crystalline passive film which becomes more resistant to breakdown. As this effect is counterbalanced by the depletion of Cr(III) in the passive layer the breakdown potential in the 25-50°C range remains practically constant. © 1986.
Registro:
| Documento: | Artículo |
| Título: | The influence of temperature and the role of chromium in the passive layer in relation to pitting corrosion of 316 stainless steel in NaCl solution |
| Autor: | Pallotta, C.; De Cristofano, N.; Salvarezza, R.C.; Arvia, A.J. |
| Filiación: | Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Fisica, Ciudad Universitaria Pabellón II, 1428 Buenos Aires, Argentina Instituto Nacional de Tecnología Industrial-INTI, Sector Electroquímica Aplicada, C.C. 157, (1650) San Martin, Argentina Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas-INIFTA, Casilla de Correo 16, Sucursal 4, 1900 La Plata, Argentina |
| Palabras clave: | CHROMIUM PLATING; ELECTROCHEMISTRY; STEEL CORROSION - Pitting; PASSIVE LAYERS; STAINLESS STEEL |
| Año: | 1986 |
| Volumen: | 31 |
| Número: | 10 |
| Página de inicio: | 1265 |
| Página de fin: | 1270 |
| DOI: | http://dx.doi.org/10.1016/0013-4686(86)80146-3 |
| Título revista: | Electrochimica Acta |
| Título revista abreviado: | Electrochim Acta |
| ISSN: | 00134686 |
| CODEN: | ELCAA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00134686_v31_n10_p1265_Pallotta |
Referencias:
- Galvele, (1978) Passivity of Metals, p. 285. , R.P. Frankental, J. Kruger, The Electrochem. Soc, Princeton, New Jersey
- Bertocci, Yeng-Xiang, (1984) J. electrochem. Soc., 131, p. 1011
- M. Keddam, M. Krarti and C. Pallotta, submitted to Corrosion; Daufin, Pagetti, Labbe, Flaichel, (1985) Corrosion, 41, p. 533
- Murphy, Pou, Bockris, (1984) J. electrochem. Soc., 131, p. 2785
- Murphy, Bockris, Pou, (1983) J. electrochem. Soc., 130, p. 1792
- MacDougall, Graham, (1984) J. electrochem. Soc., 131, p. 727
- Heusler, Fischer, (1976) Werks. und Korr., 27, p. 551
- Szlarska-Smialovska, (1974) Localized Corrosion, p. 312. , Nace, Houston, Texas
- Leckie, Uhlig, Environmental Factors Affecting the Critical Potential for Pitting in 18–8 Stainless Steel (1966) Journal of The Electrochemical Society, 113, p. 1261
- Forchhammer, Engell, Untersuchungen �ber den Lochfra� an passiven austenitischen Chrom-Nickel-St�hlen in neutralen Chloridl�sungen (1969) Materials and Corrosion/Werkstoffe und Korrosion, 20, p. 1
- Ord, Desmet, (1966) J. electrochem. Soc., 113, p. 1253
- J. Zerbino, J. R. Vilche and A. J. Arvia, Electrochim. Acta, in press; Ramasubramanian, Preocanin, Davison, (1985) J. electrochem. Soc., 132, p. 793
- Semino, Galvele, (1976) Corros. Sci., 16, p. 297
- Salvarezza, Videla, (1980) Corrosion, 36, p. 550
- Moll, Salvarezza, Videla, Arvia, The Pitting Corrosion of Nickel in Different Electrolyte Solutions Containing Chloride Ions (1985) Journal of The Electrochemical Society, 132, p. 754
- Saito, Shibata, Okamoto, (1979) Corros. Sci., p. 693
- Okamoto, (1973) Corros. Sci., 13, p. 471
- Tjong, Hoffman, Yeager, (1982) J. electrochem. Soc., 129, p. 1662
- E. Calvo and C. Pallotta, J. electroanal. Chem., in press; McCafferty, Murday, Bernett, (1985) Extended Abstracts of the 168 Electrochemical Society Meeting, Las Vegas, Nevada, 85–82, p. 245
Citas:
---------- APA ----------
Pallotta, C., De Cristofano, N., Salvarezza, R.C. & Arvia, A.J. (1986) . The influence of temperature and the role of chromium in the passive layer in relation to pitting corrosion of 316 stainless steel in NaCl solution. Electrochimica Acta, 31(10), 1265-1270.http://dx.doi.org/10.1016/0013-4686(86)80146-3
---------- CHICAGO ----------
Pallotta, C., De Cristofano, N., Salvarezza, R.C., Arvia, A.J. "The influence of temperature and the role of chromium in the passive layer in relation to pitting corrosion of 316 stainless steel in NaCl solution" . Electrochimica Acta 31, no. 10 (1986) : 1265-1270.http://dx.doi.org/10.1016/0013-4686(86)80146-3
---------- MLA ----------
Pallotta, C., De Cristofano, N., Salvarezza, R.C., Arvia, A.J. "The influence of temperature and the role of chromium in the passive layer in relation to pitting corrosion of 316 stainless steel in NaCl solution" . Electrochimica Acta, vol. 31, no. 10, 1986, pp. 1265-1270.http://dx.doi.org/10.1016/0013-4686(86)80146-3
---------- VANCOUVER ----------
Pallotta, C., De Cristofano, N., Salvarezza, R.C., Arvia, A.J. The influence of temperature and the role of chromium in the passive layer in relation to pitting corrosion of 316 stainless steel in NaCl solution. Electrochim Acta. 1986;31(10):1265-1270.http://dx.doi.org/10.1016/0013-4686(86)80146-3
