...A technology that prevents corrosion of metal structures by manipulating the electrode potential of the structures in contact with an aqueous solution environment. There are cathodic protection, which achieves the purpose by lowering the electrode potential below a reference value (corrosion prevention potential), and anodic protection, which achieves the purpose by raising the electrode potential and keeping it in the passive region. Anodic protection is known to be used in the chemical industry as a corrosion prevention method for equipment that uses inorganic acids, etc. *Some of the terminology that refers to "cathodic protection" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…水溶液環境に接している金属製構造物の電極電位を操作することによって,その構造物の腐食を防止する技術。電極電位を基準値(防食電位)以下に下げることで目的を達成するカソード防食法cathodic protection(陰極防食ともいう)と,電極電位を上げて不働態領域に保つことで目的を達成するアノード防食法anodic protection(陽極防食ともいう)とがある。アノード防食は化学工業において無機酸などを使う装置の防食法としての適用例が知られている。… ※「cathodic protection」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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