鉄2元合金のイオン窒化生成層について

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タイトル別名
  • On the Ion Nitrided Layers of Iron Binary Alloys
  • テツ 2ゲン ゴウキン ノ イオン チッカ セイセイソウ ニ ツイテ

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Iron binary alloys containing Al, Cr, Ti, Mo, Si and Mn which were important elements for nitriding were prepared and ion nitrided under several different conditions. Specimens nitrided were examined with respect to the microstructure, hardness and composition of compound layer. The results obtained were as follows:<BR>(1) Al, Cr and Ti formed nitride by nitriding and contributed to the hardening of the diffusion zone. By Mo, Si and Mn additions, however, iron nitrides were mainly formed and the increase in hardness was not so remarkable.<BR>(2) Diffusion coefficient of nitrogen for ion nitriding was calculated on the basis of the hardness distribution curve. The value was related to the affinity of the alloying elements with nitrogen.<BR>(3) The composition of the compound layers formed on the surface of nitrided was affected mainly by the kind of the alloying elements, but in pure iron and Mn-bearing alloys, it is also affected strongly by the gas composition of the nitriding atmosphere.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 40 (7), 663-669, 1976

    公益社団法人 日本金属学会

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