冷間加工を施したオーステナイト質ステンレス鋼のNaCl水溶液中における応力腐食割れ

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タイトル別名
  • Stress Corrosion Cracking of Cold-Rolled Austenitic Stainless Steels in NaCl Solution
  • レイカン カコウ オ ホドコシタ オーステナイトシツ ステンレス コウ ノ NaCl スイヨウエキ チュウ ニ オケル オウリョク フショク ワレ

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抄録

The effect of cold-working on the stress corrosion crack sensitivity in boiling NaCl with or without additional oxidizing agent was studied in 18-8 and 18-12 Mo steel. The transgranular corrosion cracking appeared in the specimen immersed in NaCl solutions provided that the solution had suitable composition for cracking. Comparing 18-8 with 18-12 Mo in its crack susceptibility, it has been shown that in most of these solution, the latter containing Mo was more resistant to the corrosion cracking than the other, and that the result did not coincide with that in MgCl2 solution. In this experiment, the preferential attack of locally transformed ferrite phase was not so predominent as in MgCl2. As mentioned above, the condition of corrosion environment which is apt to cause cracking in stainless steel depends on steel, as was shown in the case of pitting corrosion. In addition, the mechanism of crack initiation was discussed.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 25 (10), 667-670, 1961

    公益社団法人 日本金属学会

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