Evaluation of Corrosivity in Atmospheric Environment by ACM (Atmospheric Corrosion Monitor) Type Corrosion Sensor

Tadashi Shinohara; Shin-ichi Motoda; Wataru Oshikawa

doi:10.4028/www.scientific.net/MSF.475-479.61

Paper Titles

Structural Refinement of Interstitial Free (IF) Steel by Deformation and Phase Transformation
p.37

Grain Refinement and Mechanical Properties of a Metastable Austenitic Fe-Cr-Ni-Mn Alloy
p.43

Characteristics of Deformation-Enhanced Transformation in Plain Low Carbon Steel
p.49

Corrosion Resistance of Si and Al-Bearing Ultrafine Grained Weathering Steel
p.55

Evaluation of Corrosivity in Atmospheric Environment by ACM (Atmospheric Corrosion Monitor) Type Corrosion Sensor
p.61

Continuous Cooling Transformation Temperatures and Microstructures of Niobium Bearing Microalloyed Steels
p.65

Control of Martensitic Morphology in Thermal-Mechanical Processing of Ferrous Alloys
p.69

Characterization of Kinetics of Deformation-Enhanced Transformation in a Low Carbon Steel
p.73

Study on Microstructures and Mechanical Properties of B510L Steel by TMCP
p.77

HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Evaluation of Corrosivity in Atmospheric...

Evaluation of Corrosivity in Atmospheric Environment by ACM (Atmospheric Corrosion Monitor) Type Corrosion Sensor

Abstract:

An ACM (Atmospheric Corrosion Monitor) type corrosion sensor, consisting of a Fe-Ag galvanic couple was developed and applied for the evaluation of corrosivity of atmospheric environments. The sensor was designed considering mass-production and good reproducibility of results, making it convenient for long-term corrosion data acquisition. Besides the sensor output, I, temperature, relative humidity (RH) were also recorded by a microcomputer. By analyzing the magnitude and time variation of I, the occurrence and duration of rain, dew and dry periods, Train, Tdew and Tdry, respectively, could be distinguished and determined. And by referencing to the empirical I-RH calibrating curve, the amount of deposited sea salt, Ws, could also be estimated. It was also found that the corrosion loss could be estimated in both indoor and outdoor sites by analyzing sensor output. Corrosivities of some kinds of exposure sites, not only outdoor environments but also indoor environments, were evaluated by using the ACM sensor.

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

61-64

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.61

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Online since:

January 2005

Authors:

Tadashi Shinohara, Shin-ichi Motoda, Wataru Oshikawa

Keywords:

Amount of Deposit, Atmospheric Corrosion, Corrosion Monitor, Marine Atmosphere, Relative Humidity (RH), Time of Wetness

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