A Method for Estimating Time-Dependent Corrosion Depth of Carbon and Weathering Steel Using an Atmospheric Corrosion Monitor Sensor.

Authors:
Jin-Hee Ahn
Jin-Hee Ahn
South Korea
Chan-Hee Park
Chan-Hee Park
Chonbuk National University
South Korea

Sensors (Basel) 2019 Mar 22;19(6). Epub 2019 Mar 22.

Steel Structure Research Group, 100 Songdogwahak-ro, Yeonsu-gu, Incheon 21985, Korea.

In this study, a time-dependent corrosion depth estimation method using atmospheric corrosion monitor (ACM) sensor data to evaluate time-dependent corrosion behaviors is proposed. For the time-dependent corrosion depth estimation of uncoated carbon steel and weathering steel, acceleration corrosion tests were conducted in salt-spray corrosion environments and evaluated with a corrosion damage estimation method using ACM sensing data and corrosion loss data of the tested steel specimens. To estimate the time-dependent corrosion depth using corrosion current by an ACM sensor, the relationship between the mean corrosion depth calculated from the weight loss method and the corrosion current was evaluated. The mean corrosion depth was estimated by calculating the corrosion current and evaluating the relationship between the mean corrosion depth and corrosion current during the expected period. From the test and estimation results, the corrosion current demonstrated a good linear correlation with the mean corrosion depth of carbon steel and weathering. The calculated mean corrosion depth is nearly the same as that of the tested specimen, which can be well used to estimate corrosion rate for the uncoated carbon steel and weathering steel.

Download full-text PDF

Source
http://dx.doi.org/10.3390/s19061416DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6471583PMC
March 2019

Publication Analysis

Top Keywords

corrosion depth
36
corrosion
22
time-dependent corrosion
20
corrosion current
20
steel weathering
12
carbon steel
12
weathering steel
12
depth
9
depth estimation
8
estimation method
8
acm sensor
8
depth corrosion
8
uncoated carbon
8
atmospheric corrosion
8
relationship corrosion
8
evaluated corrosion
8
corrosion monitor
8
depth carbon
8
steel
7
time-dependent
5

References

(Supplied by CrossRef)
ACM (Atmospheric Corrosion Monitor) type corrosion sensor to evaluate corrosivity of marine atmosphere
Motoda et al.
Corros. Eng. (Translation of Zairyo-to-Kankyo) 1994
Corrosive factors of a marine atmosphere analyzed by ACM sensor for 1 year
Motoda et al.
Corros. Eng. (Translation of Zairyo-to-Kankyo) 1995
Monitoring of galvanic current of dual electrode ACM covered with thin electrolyte film
Cheng et al.
Bull. Electrochem. 1997

Similar Publications