金属クロームの窒化に関する研究

DOI Web Site Web Site 被引用文献1件

書誌事項

タイトル別名
  • A Study on the Nitriding of Metallic Chromium
  • キンゾク クローム ノ チッカ ニ カンスル ケンキュウ

この論文をさがす

抄録

The chemical changes of the metallic chromium during heating in nitrogen or in air were studied. The results obtained were as follows: (1) When metallic chromium was heated in extremely pure nitrogen, a rise of the heating temperature caused a continuous increase in the amount of nitrogen absorbed. The effect of the heating temperature, however, became less notable at higher temperatures, e.g. 1,250°C and upwards. (2) It was found that both oxidation and nitrization took place on the metallic chromium during heating in air. Although nitriding was prevented remarkably by the oxygen present at relatively low temperatures, e.g. 1,000∼1,200°C, it became gradually predominant with the rise of the heating temperature and consequently the increase in weight due to nitriding was about equivalent to that due to oxidation at 1,300°C. (3) The nitrides formed during heating at 1,000°C in nitrogen was identified as Cr2N and CrN by X-ray diffraction analyses, whereas CrN could not be found at 1,300°C. After heating in air, Cr2N was the only phase observed to be formed, whatever the heating temperature might be. (4) No marked difference in the amount of nitrogen absorbed by heating in nitrogen was found with the two different samples of chromium employed, i.e. of electrolytic chromium and of thermit chromium. On the contrary, if they were heated in air, both oxidation and nitriding occurred in a greater degree in the former than in the latter.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 23 (10), 568-572, 1959

    公益社団法人 日本金属学会

被引用文献 (1)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ