Herty 法による高窒素鋼中酸素の定量について : AIN の分析値に及ぼす影響及びこれが除去に關する實驗

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概要

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• It was experimented to see whether the AIN affected the results and to find method of eliminating its effect, when the oxygen in high-nitrogan steel was determined. By this research, the following facts were found : (1) It was observed that when the oxygen was analysed in the sample of steel, whose N_2 content was high (N_2 content over 0.010%), by the ordinary Herty's method, a certain quantity of AIN remained together with Al_2O_3, due to its difficulty of being solved in acid; and that accordingly, it made the resultant figures higher and also induced a fluctuation of the results. (2) The counter-measure for it was found better to eliminate the effect of AIN only by treating the Al_2O_3+AIN residue with the solution of NaOH (3%). By this method the authors obtained the true value. Consequently, it became clear that NaOH solution treatment was absolutely necessary for such sample, and thus the procedure of the Herty's method of high-N_2steel was established too.

• 社団法人日本鉄鋼協会の論文
• 1954-04-25

著者

• 桐山 靜男

  住友金屬製鋼所技術部研究課

• 岸 俊也

  住友金屬製鋼所技術部研究課

• 岸 俊也

  住友金屬工業製鋼所

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• 113 鐵鋼中の微量硼素の定量に就いて(日本鐵鋼協會第 47 囘講演大會講演大要)

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