Localized acidification as the cause of passivity breakdown of high purity zinc

Keitelman, A.D.; Gravano, S.; Galvele, J.R.

doi:10.1016/0010-938x(84)90035-0

Cited by 26 publications

(14 citation statements)

References 12 publications

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“…Galvele [37] suggested that pitting potential is the summation of corrosion potential in acidic pit solution, activation overpotential, extra potential required when inhibitors are presented, and the electrical potential inside the pit when ion migration is considered. According to Galvele's model [37,38], by adding passivating inhibitor, migration of inhibitor ions into the pit cavity may cause all parameters mentioned above to be changed. The dichromate main influence was increasing the pitting potential by increasing the extra potential necessary for reaching the critical value for pit stability criterion.…”

Section: Discussionmentioning

confidence: 99%

The effect of dichromate ion on the pitting corrosion of AISI 316 stainless steel Part II: Pit initiation and transition to stability

et al. 2015

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Section: Discussionmentioning

confidence: 99%

The effect of dichromate ion on the pitting corrosion of AISI 316 stainless steel Part II: Pit initiation and transition to stability

et al. 2015

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“…E P increases with OH -concentration in the alkaline range of pH. The critical value of x · i increases with pH, making it more diffi cult to attain critical chemistry (Galvele, 1976;Keitelman, Gravano, & Galvele, 1984). Pitting corrosion of 300 SS series is completely inhibited for OH -to Cl -concentration ratios of approximately 0.03 -0.05.…”

Section: Inhibitors For the Localized Corrosion Of Stainless Alloysmentioning

confidence: 96%

“…(12) states the obvious fact that an inhibitor must produce an increase of E C to act effi ciently. Although the term E INH accounts for the effects of inhibitors, it cannot be experimentally separated from the other contributions (Keitelman et al, 1984). Galvele (1976) states that the addition of OH -or anions of weak acids increases the critical value of x · i , which produces an increase of η .…”

Section: Inhibitors For the Chloride-induced Crevice Corrosion Of Allmentioning

confidence: 98%

Inhibition of localized corrosion in chromium containing stainless alloys

Rodríguez

2012

Corrosion Reviews

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The application of stainless steels and chromium containing nickel-based alloys is limited by their susceptibility to localized corrosion in the forms of pitting and crevice corrosion or environmentally assisted cracking. Inhibitors may be normally found in service environments or added on purpose to mitigate or avoid the effects of aggressive agents such as chloride ions. The present study critically reviews the present knowledge on inhibition of chloride-induced pitting and crevice corrosion. Pioneering studies and recent fi ndings are analyzed in light of the present theories for describing the localized corrosion processes. This review particularly focuses on the inhibition of crevice corrosion of alloy 22, which has been thoroughly studied in the past decade.

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“…However, E inh cannot always be experimentally separated from other factors. [27,28] The validity of Eq. 4 has been first confirmed by Newman et al [29] and studied in numerous investigations.…”

Section: Differential Aeration and Chloride Concentrationmentioning

confidence: 97%

“…4 has been first confirmed by Newman et al [29] and studied in numerous investigations. [27,[30][31][32][33][34][35] The different parameters in Eq. 4 can be measured experimentally by conducting anodic polarization experiments in crevice-like solutions.…”

Section: Differential Aeration and Chloride Concentrationmentioning

confidence: 99%

Crevice corrosion

Iannuzzi¹,

Salasi²,

Hornus³

2019

Preprint

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Today, there is a large number of accepted tests to study crevice corrosion phenomena. The different methodologies can be used for comparing and ranking alloys, quality control, assessing the effects of changes in manufacturing routes and alloy composition on crevice corrosion resistance, as well as in evaluations to determine critical temperatures and potentials and induction times.The goal of the chapter is to describe the various standard test methods available to the corrosion specialist as well as adaptations to study specific crevice corrosion parameters. The focus is on test methods developed by the ASTM Committee G-1 on corrosion of metals, but other procedures are also included. While the test principles have been applied to many alloy systems, the scope of the chapter is on stainless steels and nickel-based alloys.

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Localized acidification as the cause of passivity breakdown of high purity zinc

Cited by 26 publications

References 12 publications

The effect of dichromate ion on the pitting corrosion of AISI 316 stainless steel Part II: Pit initiation and transition to stability

The effect of dichromate ion on the pitting corrosion of AISI 316 stainless steel Part II: Pit initiation and transition to stability

Inhibition of localized corrosion in chromium containing stainless alloys

Crevice corrosion

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