Fig. 4: Variations of the current SDs with exposure time. | npj Materials Degradation

Fig. 4: Variations of the current SDs with exposure time.

From: Use of electrochemical current noise method to monitor carbon steel corrosion under mineral wool insulation

Fig. 4

Triangles represent the top section and dots represent the bottom section. The area above the dry baseline is related to wet steel surface and active corrosion under insulation, while that below the baseline means the insulation system is dry and safe from corrosion attack. Lines added to aid trend visualisation.

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