In Situ Mass Spectrometric Reaction Monitoring of Atmospheric Corrosion Processes

Hölzl, Georg; Schimo, Gabriela; Luckeneder, Gerald; Duchaczek, Hubert; Kleber, Christoph; Hassel, Achim Walter

doi:10.1002/pssa.201700860

Cited by 4 publications

(3 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although it is obvious that monitoring the cathodic reaction rate provides a direct, non-destructive measurement of the corrosion rate, there are only few examples where this approach was used in corrosion science. 16,17 In the field of atmospheric corrosion, Stratmann et al 18 used a differential pressure sensor to monitor the pressure decrease due to oxygen consumption of a corroding iron sample. Matthiesen 19,20 measured the consumption of O2 due to the degradation of cultural heritage materials with an optical O2 sensor in closed vials, flexible gas-tight bags and in-situ on larger artefacts.…”

Section: + + − → −mentioning

confidence: 99%

Respirometric In-Situ Methods for Real-Time Monitoring of Corrosion Rates: Part I. Atmospheric Corrosion

Strebl¹,

Bruns²,

Virtanen³

2019

Preprint

View full text Add to dashboard Cite

A novel respirometric approach to monitor atmospheric corrosion kinetics is presented. Simultaneous real-time monitoring of the H2 evolution reaction (HER) and the O2 reduction reaction (ORR) is possible with a combination of optical O2 sensor measurements with gravimetric volume sensitive techniques or pressure sensor based techniques in closed chambers. The respirometric method is a universal, non-destructive tool applicable to any metal or alloy. It shows a high sensitivity for low corrosion rates and has a high time-resolution. Different examples of relevant engineering metals and alloys will be provided. Mass loss validation measurements carried out at the end of exposure show a good correlation with the total recorded cathodic charge. For metals with different oxidation states the average valency in the corrosion products can be calculated from the cathodic charge together with mass loss. The versatility of the novel monitoring technique is further demonstrated by studying the influence of wet-dry cycling, temperature steps or changes in the gas composition in-situ. The rate of HER, ORR and total corrosion rate during these changing exposure conditions can be tracked directly on the same sample. Overall the new method contributes to bridging the gap between lab tests, accelerated testing and field exposure.

show abstract

Section: + + − → −mentioning

confidence: 99%

Respirometric In-Situ Methods for Real-Time Monitoring of Corrosion Rates: Part I. Atmospheric Corrosion

Strebl¹,

Bruns²,

Virtanen³

2019

Preprint

View full text Add to dashboard Cite

show abstract

“…methane in the case of anaerobic respiration). In a corrosion process, the electron acceptor is usually either O2 or H2O and it is more convenient to monitor the reduced form of water, namely H2 (Hölzl, 2018). Although it is obvious that monitoring the cathodic reaction rate provides a direct, non-destructive measurement of the corrosion rate, there are only few examples where this approach was used in corrosion science (Cáceres, 2007).…”

Section: Introductionmentioning

confidence: 99%

Development and Evaluation of Respirometric in Situ Corrosion Monitoring System

o¹,

Idusuyi²

2023

International Journal of Mechanical and Civil Engineering

View full text Add to dashboard Cite

There is a growing need for a system to be used for real-time in-situ monitoring of corrosion rates. This system/method allows the determination of real-time corrosion rates under realistic exposure conditions and is capable of following changing exposure conditions in situ. This is realized by a combination of optical Oxygen sensor measurements with either gravimetric volume sensitive techniques or pressure sensor based techniques in a closed chamber. This study was therefore aimed at developing and evaluating a low-cost, real-time corrosion monitoring system, using copper (Cu) as a test sample. Materials used were sourced locally, the circuitry was designed and used to develop the system with incorporation of sensors that can monitor temperature, humidity and pressure within an airtight glass bottle and placed in a housing which was fabricated. The developed system was then evaluated using a piece of Cu exposed to 5% Sodium Chloride (NaCl). Hydrogen evolution reaction (HER) and Oxygen Reduction Reaction (ORR) within the closed chamber were monitored; and thus Ideal gas and Henry laws were adopted to calculate the amount of gas molecules, and convert them to cathodic reactions. The methods were carried out in accordance with existing literature and standard procedure. Results of evaluation of the system showed that, the more Oxygen is being consumed, the higher the corrosion. Mass loss validation measurements carried out at the end of exposure showed a good correlation with the total recorded cathodic charge. Immersion corrosion kinetics can be monitored non-destructively and in real-time. Manometric approach showed that HER leads to a pressure increase while ORR leads to a decrease in pressure. ORR monitoring is possible based on the amount of consumed O2 by manometric and sensor-based approaches; sensitive, non-destructive corrosion rate measurements are possible on Cu and could be monitored remotely.

show abstract

“…Although it is obvious that monitoring the cathodic reaction rate provides a direct, non-destructive measurement of the corrosion rate, there are only few examples where this approach was used in corrosion science. 16,17 In the field of atmospheric corrosion, Stratmann et al 18 used a differential pressure sensor to monitor the pressure decrease due to oxygen consumption of a corroding iron sample. Matthiesen 19,20 measured the consumption of O 2 due to the degradation of cultural heritage materials with an optical O 2 sensor in closed vials, flexible gas-tight bags and in situ on larger artefacts.…”

mentioning

confidence: 99%

Editors’ Choice—Respirometric in Situ Methods for Real-Time Monitoring of Corrosion Rates: Part I. Atmospheric Corrosion

Strebl

Bruns

Virtanen

2020

J. Electrochem. Soc.

View full text Add to dashboard Cite

A novel respirometric approach to monitor atmospheric corrosion kinetics is presented. Simultaneous real-time monitoring of the H2 evolution reaction (HER) and the O2 reduction reaction (ORR) is possible with a combination of optical O2 sensor measurements with gravimetric volume sensitive techniques or pressure sensor based techniques in closed chambers. The respirometric method is a universal, non-destructive tool applicable to any metal or alloy. It shows a high sensitivity for low corrosion rates and has a high time-resolution. Different examples of relevant engineering metals and alloys will be provided. Mass loss validation measurements carried out at the end of exposure show a good correlation with the total recorded cathodic charge. For metals with different oxidation states the average valency in the corrosion products can be calculated from the cathodic charge together with mass loss. The versatility of the novel monitoring technique is further demonstrated by studying the influence of wet-dry cycling, temperature steps or changes in the gas composition in situ. The rate of HER, ORR and total corrosion rate during these changing exposure conditions can be tracked directly on the same sample. Overall the new method contributes to bridging the gap between lab tests, accelerated testing and field exposure.

show abstract

In Situ Mass Spectrometric Reaction Monitoring of Atmospheric Corrosion Processes

Cited by 4 publications

References 52 publications

Respirometric In-Situ Methods for Real-Time Monitoring of Corrosion Rates: Part I. Atmospheric Corrosion

Respirometric In-Situ Methods for Real-Time Monitoring of Corrosion Rates: Part I. Atmospheric Corrosion

Development and Evaluation of Respirometric in Situ Corrosion Monitoring System

Editors’ Choice—Respirometric in Situ Methods for Real-Time Monitoring of Corrosion Rates: Part I. Atmospheric Corrosion

Contact Info

Product

Resources

About