埋設鋼管の交流電流による腐食の評価法(<特集>腐食防食)

概要

論文の詳細を見る
There is a possibility that alternating current will cause corrosion in a defect of the coating on buried steel pipeline. In this research, we developed an evaluating method with which we could evaluate alternating current corrosion of the steel in a short time compared with conventional evaluating method by mesuring corrosion weight loss. The results of this research showed that alternating current corrosion of buried steel under cathodic protection could be estimated by measuring the IR-drop-free potential, especially peak (maximum) potential of the steel using IR-drop-free probe. It was also found that corrosion protection of the steel could be achieved when peak potential of the steel was over 100mV less noble than free corrosion potential of the steel.
社団法人日本材料学会の論文
2004-11-15