…However, its true nature is that it is a metal with a strong tendency to ionize electrochemically, and when it comes into contact with ferrous materials such as steel, zinc is significantly corroded, but the corrosion of the iron is prevented. This effect (galvanic action) is used in anticorrosive zinc (sacrificial anodes) to protect steel structures from corrosion. This is an alloy with a special composition that makes it easy to dissolve electrochemically in an aqueous solution. … *Some of the terminology explanations that mention "galvanic action" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…しかしその本性は,電気化学的にイオン化傾向の大きい金属であり,鋼など鉄系の材料と接触していると,亜鉛は大きく腐食されるが,鉄の腐食は防止される。この作用(ガルバニック作用)を利用したものに,鉄鋼構造物の防食を目的として用いられる防食亜鉛(犠牲陽極)がある。これは,水溶液中で電気化学的に溶解しやすくした特殊な組成の合金である。… ※「ガルバニック作用」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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