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  • A Review of Applications of Monitoring of Corrosion of Steels to Cooling Water Systems
  • カイホウ ジュンカン レイキャクケイ

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Applications of electrochemical methods for measuring of corrosion rates to the corrosion of mild steel and stainless steel in cooling water systems were reviewed. Some remarks in the use of the electrochemical methods were pointed out.<br>For cooling water with chromate inhibitors or nonchromate inhibitors, estimated corrosion rates of mild steel were in a good agreement with measured rates from weight loss. Electrochemical methods allow emergency control action to be taken speedily, for the methods can give instantaneous corrosion rates of steel specimens and monitor change in the corrosion rates. Corrosion probes have to be placed in the most corrosive parts in the systems.<br>Besides corrosion rate measurements, control of cycles of concentration by additional measurements of conductivity of cooling water is required for operations under better corrosion protection.

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