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Hydrogen in chromium: influence on corrosion potential and anodic dissolution in neutral NaCl solution
KTH, Superseded Departments, Materials Science and Engineering.
2001 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 43, no 7, 1267-1281 p.Article in journal (Refereed) Published
Abstract [en]

The influence of hydrogen charging, outgassing, pickling and passivation of mechanically polished chromium was investigated with respect to corrosion potential and anodic dissolution in 0.3 M NaCl solution. Secondary ion mass spectroscopy measurements were used to detect hydrogen after hydrogen charging by means of cathodic polarization. The results show that hydrogen in chromium decreases the corrosion potential and increases the anodic dissolution rate. Passivation in HNO3 and pickling in HNO3 + HF increases the corrosion potential, whereas no significant effect on the anodic dissolution could be observed, probably due to a hydrogen uptake in these surface treatments.

Place, publisher, year, edition, pages
2001. Vol. 43, no 7, 1267-1281 p.
Keyword [en]
chromium, polarization, SIMS, hydrogen adsorption, passivity, temperature oxidation-kinetics, oxide-growth mechanisms, stainless-steel, scale adherence, film
Identifiers
URN: urn:nbn:se:kth:diva-20683ISI: 000169075100005OAI: oai:DiVA.org:kth-20683DiVA: diva2:339379
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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