メッキ錫の結晶方位と耐食性

概要

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For the purpose of improving the corrosion resistance of tin plate, the effect of tin crystal orientation on the corrosion was investigated by electrochemical methods. The results obtained are as follows : 1. In a 6g/l citric acid solution, the corrosion rate of tin depended on the exposed crystal plane, that is, the rate decreased with orientation of the single crystal plane according to the order ; (001)>(011)>(110), (010). 2. When two single crystals of tin with different orientations were made a galvanic cell, the more closely packed plane became a cathode and was protected by the other of more loosely packed crystal. 3. In order to improve the corrosion resistance, it is necessary that the orientations of plated tin crystals should be all alike and they should be those of more closely packed planes.
社団法人日本鉄鋼協会の論文
1969-02-01