Use of weight loss coupons and electrical resistance probes in atmospheric corrosion tests

Mckenzie, M; Vassie, P R

doi:10.1179/000705985798272696

Cited by 23 publications

(16 citation statements)

References 1 publication

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“…Therefore, the corrosioninduced change in geometry of a metal can be used to determine the metal loss and corrosion rate. The electric resistance (ER) sensor has been widely used in many industries to determine the corrosion rate owing to the ease of measurement and interpretation [17][18][19]. However, the low sensitivity of these sensors has stymied their use for underground steel structures.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Long-Term Corrosion Behavior of X80 Pipeline Steel in Acidic Red Soil Using Electrical Resistance Test Technique

Wang

Liu

et al. 2015

Advances in Materials Science and Engineering

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The long-term corrosion rate of X80 steel in an acidic red soil was monitored in situ by using a precise electrical resistance (ER) test system. The corrosion characteristics of X80 steel were examined via SEM, EDS, and XRD. The results indicated that the corrosion rate determined from ER test was very similar to that obtained from the mass loss test. The ER test technique made it possible to predict the long-term corrosion rate of steel in soil in situ. The corrosion rate of X80 steel in acidic red soil was about 0.0902 mm/a at 38 weeks, but the corrosion rate was dropped to 0.0226 mm/a after 5 years. The final corrosion product layer was composed mainly of FeOOH,γ-Fe2O3, and FeCO3.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Long-Term Corrosion Behavior of X80 Pipeline Steel in Acidic Red Soil Using Electrical Resistance Test Technique

Wang

Liu

et al. 2015

Advances in Materials Science and Engineering

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“…The method is especially recommendable for the detection of the onset of corrosion. 1 Another advantage of the ER technique is that in contrast to electrochemical methods the presence of an electrolyte layer on the metal surface is not inevitable. In that sense, there are no problems with the method being used is atmospheric conditions even at a low relative humidity (RH) of atmosphere.…”

Section: Introductionmentioning

confidence: 99%

“…In that sense, there are no problems with the method being used is atmospheric conditions even at a low relative humidity (RH) of atmosphere. 1 Moreover, it is used for corrosion monitoring of high temperature corrosion, erosion corrosion or in nonconductive environments. Despite other methods [2][3][4][5][6][7][8][9] used for monitoring atmospheric corrosion, the resistometric method provides information directly about the metal corrosion loss.…”

Section: Introductionmentioning

confidence: 99%

High sensitivity electrical resistance sensors for indoor corrosion monitoring

Kouřil

Prošek

Scheffel

et al. 2013

Corrosion Engineering, Science and Technology

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It is essential that corrosion monitoring of indoor atmospheres be highly sensitive, especially when corrosion rates corresponding to the lowest standard corrosivity categories are supposed to be identified within one or a few days. The electrical resistance (ER) technique in combination with high sensitivity ER sensors enabled detection of corrosion loss on an atomic scale. The magnetron sputtering method was used to produce sensors equipped with 50 to 800 nm metallic track. The set of developed sensors represent a wide range of materials, e.g. copper, silver, iron, lead and bronze. Laboratory experiments have proven that copper and silver sensors respond to changes in relative humidity and temperature within minutes. Bronze and copper sensors are able to detect changes in concentrations of volatile organic acids, which are common pollutants of indoor atmospheres in museums.

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“…The simplest metal loss analysis method is the weight-loss coupon; the most commonly used technique in corrosion research. 10 The coupon requires a relatively long exposure time to yield accurate results. The constraints imposed by the time of exposure naturally limit the number of data points that can be obtained from a location, and ultimately do not detect process changes quickly.…”

Section: Introductionmentioning

confidence: 99%

“…Because the electrical resistance of a current path increases as its cross-sectional area is reduced, metal loss can be detected by an electrical resistancemeasuring instrument. [10][11][12] An electrical resistance sensor is often comprised of a sensing element that is basically a wire, strip or tube made of the alloy of concern, which is used to conduct an electric signal. When the sensor element is exposed to a corrosive environment, the cross-sectional area of the element decreases, hence the resistance of the sensing element increases.…”

Section: Introductionmentioning

confidence: 99%

A novel capacitance sensor for fireside corrosion measurement

Ban

2009

Review of Scientific Instruments

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Fireside corrosion in coal-fired power plants is a leading mechanism for boiler tube failures. Online monitoring of fireside corrosion can provide timely data to plant operators for mitigation implementation. This paper presents a novel sensor concept for measuring metal loss based on electrical capacitance. Laboratory-scale experiments demonstrated the feasibility of design, fabrication, and operation of the sensor. The fabrication of the prototype sensor involved sputtering deposition of a thin metal coating with varying thickness on a ceramic substrate. Corrosion metal loss resulted in a proportional decrease in electrical capacitance of the sensor. Laboratory experiments using a muffle furnace with an oxidation environment demonstrated that low carbon steel coatings on ceramic substrate survived cyclic temperatures over 500 degrees C. Measured corrosion rates of sputtered coating in air had an Arrhenius exponential dependence on temperature, with metal thickness loss ranging from 2.0 nm/h at 200 degrees C to 2.0 microm/h at 400 degrees C. Uncertainty analysis indicated that the overall measurement uncertainty was within 4%. The experimental system showed high signal-to-noise ratio, and the sensor could measure submicrometer metal thickness changes. The laboratory experiments demonstrated that the sensor concept and measurement system are capable of short term, online monitoring of metal loss, indicating the potential for the sensor to be used for fireside corrosion monitoring and other metal loss measurement.

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Use of weight loss coupons and electrical resistance probes in atmospheric corrosion tests

Cited by 23 publications

References 1 publication

Analysis of the Long-Term Corrosion Behavior of X80 Pipeline Steel in Acidic Red Soil Using Electrical Resistance Test Technique

Analysis of the Long-Term Corrosion Behavior of X80 Pipeline Steel in Acidic Red Soil Using Electrical Resistance Test Technique

High sensitivity electrical resistance sensors for indoor corrosion monitoring

A novel capacitance sensor for fireside corrosion measurement

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