What is a potential consequence of using ICCP?

Using impressed current cathodic protection (ICCP) systems can indeed lead to hydro embrittlement, which is a critical concern. Hydro embrittlement occurs when hydrogen, produced during cathodic protection processes, diffuses into certain metals, particularly high-strength steels, making them more susceptible to cracking under stress. This phenomenon can significantly compromise the integrity and longevity of structures protected by ICCP systems, necessitating careful consideration and monitoring of hydrogen levels during operation.

While higher maintenance costs, increased anodic losses, and the potential for corrosion of non-target metals are relevant considerations in ICCP systems, they do not directly address the specific and damaging effect of hydro embrittlement on the structural integrity of metals used in construction and infrastructure. Understanding hydro embrittlement is crucial for engineers and technicians working with ICCP, as it informs both design choices and ongoing maintenance strategies to mitigate risks associated with hydrogen embrittlement.