高力Cu-Al-Fe-Ni合金の海水による脱Al

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タイトル別名
  • On the Dealuminification due to Sea Water Corrosion in a Cu-Al-Fe-Ni Alloy
  • コウリョク Cu-Al-Fe-Ni ゴウキン ノ カイスイ ニ ヨル ダツAl

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抄録

Corrosion in a condenser tube sheet made of Cu-Al-Fe-Ni alloy was investigated. The fillings between α phase were preferentially corroded and became red. This red part was confirmed by X-ray diffractmeter as pure copper. By X-ray transmission photographs it was determined that the direction of its growth is ⟨001⟩ and coincides with the fibre axis of electroplated copper. Therefore, copper preferentially deposited from the solution containing Cu, Al, Ni, etc. From the differences of lattice constants of α phase of original material and that of corroded part, it was concluded that the compositions of the α phase has a certain range and the concentration of Al is lowest in the centre of grain.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 26 (7), 433-437, 1962

    公益社団法人 日本金属学会

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