金属の水溶液腐食についての一考察

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概要

• 論文の詳細を見る

• The measurement of polarization in metals in electrolytic solutions is an effective method of determining the corrosion rate and its mechanism because the local action of the cell on the metal surface, which is not of t he typical electrochemical phenomena, is considered to be the causative of aqueous corrosion of metals in general. To this general statement, however, there are limitations as follows : (1) That even with perfect polarization of the metal its active sites on the surface remain constant. (2) That the mechanism of the anodic and the cathodic reactions remain as it is for a wide range of polarization. Through experiments of examining iron pieces of different species, for their contamination at 40℃, in aqueous solution of sulfuric acid, as it was or in the same solution with ferrous ion, the parameters of hydrogen elections on the metal cathode, their Tafel coefficient, and their exchange current density were obtained as well as their static potential and corrosion current density. The hysteresis on the potential vs. current density curve with increasing and decreasing current was observed in all the sample species while the potential vs. log current density curve made a straight line when the surface of the e lectrode was sufficiently stabilized by electrolysis at high current density in pure solution of the acid. The report of the experiments is concluded with demonstration to prove that the measurement of polarization is still an effective method of corrosion test.

• 社団法人日本材料学会の論文
• 1968-08-15

著者

• 山川 宏二

  京都大学工学部

• 日根 文男

  名古屋工業大学 : 腐食防食部門委員会タスク・グループ「コンクリート腐食」

• 日根 文男

  京都大学工学部

• 足立 文彦

  京都大学工業教員養成所

• 山川 宏二

  腐食防食部門委員会

関連論文

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• 硫化物溶液中における低合金綱の水素吸蔵現象
• 403ステンレス綱の水素含有量と拡散定数の測定
• 鉄筋コンクリート中の鉄筋の腐食に関する試験法 (腐食防食小特集)
• 隔膜法食塩電解への転換とそれに伴う腐食問題
• 金属の水溶液腐食についての一考察
• 金属材料の腐食試験とその応用(第1報)(自然腐食量の電気化学的測定方法と測定装置の試作)
• 塗装金属の電気化学的腐食
• 電解質溶液の電解時における電位について(2)-拡散層に関する一考察-
• 講座をはじめるにあたって
• "化学者のための材料指針", 渡辺信淳,佐伯健作 共編, 1980年, 共立出版, A5判, 305ページ, \3300
• "電気化学反応操作と電解槽工学", 日根 文男(著), 1979年, (株)科学同人発刊, B5判, 308頁, \3,600
• 1・3 水溶液腐食 : 腐食科学と技術の進歩-1978 : 1 腐食評価 (腐食防食小特集)
• 4応力腐食割れ
• Materials of Construction for Steam Power Plant, L.M.Wyatt著, Applied Science Publ., London, 1976年版, B5判, 312頁, £15
• 水素ぜい化事例
• 討論「応力腐食割れと腐食疲労」
• 腐食防食特集の刊行にあたって(腐食防食)

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