Tiにより安定化したステンレス鋼の組織とクリープ特性の関係について

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書誌事項

タイトル別名
  • Creep Characteristics as Related to the Heat-treatment and Microstructures in Stainless Steel Stabilized by Titanium
  • Ti ニ ヨリ アンテイカ シタ ステンレス コウ ノ ソシキ ト クリープ トクセイ ノ カンケイ ニ ツイテ

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抄録

It was frequently reported that Creep characteristics of stainless steel stabilized by titanium was strongly affected by its solution treatment. This report is also concerns with a study of this phenomena. It consists of two series of experiment: The first concerns with the changes in creep rate after heating at various temperature and the second proves the effect of solution treatment temperature on the creep rate after aging at 750°C. The first experiment shows that the creep rate does not increase by heating at a higher temperature than 900°C, but increases by heating at a lower temperature than 850°C. Refering to the previous report on the phase changes by heating at various temperatures, the increase in creep rate is concluded to be related to the precipitation of Cr3C2. The second experiment reveals that the precipitation of Cr3C2 is affected by the solution treatment temperature. In case of the lower solution temperature, the previously precipitated TiC accelerates the precipitations of Cr3C2. Consequently, the increase of the creep rate of the steel heated at a lower solution treatment temperature starts earlier than that at a higher solution treatment. Though it is sure that the precipitation of Cr3C2 is related to the deterioration of creep characteristics, but this might be the only sign of the phenomena and the direct proof is not given by this experiment.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 28 (10), 604-610, 1964

    公益社団法人 日本金属学会

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