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Journal of Chinese Society for Corrosion and protection  2026, Vol. 46 Issue (1): 308-314    DOI: 10.11902/1005.4537.2025.090
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Development of an Atmospheric Corrosion Monitor and its Real-time Monitoring in Different Environmental Conditions
YUE Yuanguang(), YIN Zhibiao, ZHANG Ziyue, JIANG Sheming, ZHANG Qifu
National Engineering Lab of Advanced Coating Technology for Metals, New Metallurgy Hi-Tech Group Co. Ltd., Central Iron & Steel Research Institute, Beijing 100081, China
Cite this article: 

YUE Yuanguang, YIN Zhibiao, ZHANG Ziyue, JIANG Sheming, ZHANG Qifu. Development of an Atmospheric Corrosion Monitor and its Real-time Monitoring in Different Environmental Conditions. Journal of Chinese Society for Corrosion and protection, 2026, 46(1): 308-314.

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Abstract  

Herein, an innovative multi-channel atmospheric corrosion monitoring workstation was designed to evaluate the corrosivity of different atmospheric conditions on engineering materials. The device features a simple structure and user-friendly operation, enabling the real-time collection of long-term corrosion data of materials, and the monitor of key atmospheric parameters such as temperature, humidity, UV intensity, and SO2 concentration. By comparing the measurement results of two probes with detecting elements of 0.5 and 2 mm thickness respectively, it was found that the 0.5 mm probe performed better in terms of sensitivity and response time. It follows that the device can effectively evaluate the corrosion of mild steel in different atmospheric conditions, with a resolution of up to 0.05 mm. Obviously, it can be expected that this device will become a providing a powerful tool for assessment of corrosion performance of engineering materials.

Key words:  atmospheric corrosion      corrosion monitoring      mild steel      corrosion rate     
Received:  16 March 2025      32134.14.1005.4537.2025.090
ZTFLH:  TG172  

URL: 

https://www.jcscp.org/EN/10.11902/1005.4537.2025.090     OR     https://www.jcscp.org/EN/Y2026/V46/I1/308

Fig.1  Schematic diagram of micro-resistance measurement
Fig.2  Schematic diagram of workstation
Fig.3  Measurement principle diagram (a) and physical image of the probe (b)
Fig.4  Flow charts of atmospheric corrosion monitoring
Fig.5  Effects of various environmental factors on corrosion rate: (a) temperature, (b) humidity, (c) UV intensity, (d) SO2 concentration[28,29]
Fig.6  Corrosion data monitored by two ER probes in one year
Fig.7  Variances of the remaining thicknesses collected by 2 (a) and 0.5 mm (b) probes
Fig.8  Microscopic morphologies of 2 (a, e) and 0.5 mm (b, f) probes, and the front (c, g) and back (d, h) surfaces of experimental coupons
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