13Crステンレス鋼のオーステナイト化状態および変態挙動におよぼす炭化物溶解の意義

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タイトル別名
  • Effect of Carbide Dissolution on the Austenitization and the Behavior in Transformation of 13Cr Stainless Steel
  • 13Cr ステンレス コウ ノ オーステナイトカ ジョウタイ オヨビ ヘンタイ キョドウ ニ オヨボス タンカブツ ヨウカイ ノ イギ

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抄録

On three samples of 13Cr stainless steel containing 13% of chromium and 0.09%, 0.17% and 0.26% of carbon, the effect of austenitizing temperature on the Ms and Mf points and on the microstructure has been investigated and the TTT-diagrams have been established at the different austenitizing temperatures for 10 minutes in order to investigate the correlation between the austenitization and the behavior in transformation. The Ms and Mf points were measured by the dilatometric method and the process of isothermal transformation was examined by the use of hardness and microscopic tests. The Ms and Mf points become evidently lowered by dissolution of the carbide. In the pearlite transformation, the higher the austenitizing temperature rises, the longer grows the incubation period and the slower the transforming rate. Comparison of the Ms and Mf points and the TTT-diagrams of the three samples revealed the difference coming from the influence of their chemical compositions on the transformation process. These results may illustrate the dependence of the behavior in transformation mainly on the concentrations of carbon and chromium.

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  • 日本金属学会誌

    日本金属学会誌 26 (6), 339-343, 1962

    公益社団法人 日本金属学会

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