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51318-11236-Using Electrochemical Noise to Elucidate the Mechanisms involved in Localized Corrosion – A Review

Passive layer stability and breakdown, metastable pitting and stable pit growth in stainless steels. Also, the benefits and challenges of using electrochemical noise for studying localized corrosion of stainless steels.

Product Number: 51318-11236-SG
Author: Helmuth Sarmiento Klapper
Publication Date: 2018
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Since Iverson´s seminal publication “Transient Voltage Changes Produced in Corroding Metals and Alloys” in 1968, the assessment of electrochemical noise signals has been successfully used, as an electrochemical technique, to study localized corrosion on passive materials. This paper reviews the work done by many research groups worldwide using electrochemical noise to elucidate the mechanisms of pitting corrosion, which occur in several electrochemical systems. This short review concentrates on passive layer stability and breakdown, metastable pitting and stable pit growth in stainless steels. In addition, the benefits and challenges of using electrochemical noise for studying localized corrosion of stainless steels are discussed in the context of the milestones accomplished with this electrochemical technique in the last 50 years.

Key words: Electrochemical noise, Stainless steel, Passivity, Pitting corrosion

Since Iverson´s seminal publication “Transient Voltage Changes Produced in Corroding Metals and Alloys” in 1968, the assessment of electrochemical noise signals has been successfully used, as an electrochemical technique, to study localized corrosion on passive materials. This paper reviews the work done by many research groups worldwide using electrochemical noise to elucidate the mechanisms of pitting corrosion, which occur in several electrochemical systems. This short review concentrates on passive layer stability and breakdown, metastable pitting and stable pit growth in stainless steels. In addition, the benefits and challenges of using electrochemical noise for studying localized corrosion of stainless steels are discussed in the context of the milestones accomplished with this electrochemical technique in the last 50 years.

Key words: Electrochemical noise, Stainless steel, Passivity, Pitting corrosion

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