W-Coメッキの加熱硬化について

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書誌事項

タイトル別名
  • On the Hardening Effect of W-Co Deposit by Heating
  • W-Co メッキ ノ カネツ コウカ ニ ツイテ

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抄録

The hardness of W-Co electrodeposit obtained from tartrate bath is abnormally increased when it is heated at 700°C for 1 hour. The hardening process of W-Co deposits which were obtained under various plating condition was investigated, and the mechanism of this hardening was discussed after the examination of crystal structure by X ray diffraction method. The results obtained were as follows : It was found that the ordering transformation of αCo→Co3W took place in the deposit during the heating, though the ordering was not completed by heating at 700°C for 1 hour. The increase in hardness was almost proportional to the W content in the deposit, except in the case in which particular plating conditions such as low Co-content solution and high current density were adopted. The degree of hardening seemed to be dependent on the size, the amount and the distribution of ordering regions in αCo solid solution.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 25 (4), 296-300, 1961

    公益社団法人 日本金属学会

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