共析パーライト鋼の延性支配因子

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書誌事項

タイトル別名
  • Microstructures Dominating the Ductility of Eutectoid Pearlitic Steels
  • キョウセキ パーライト コウ ノ エンセイ シハイ インシ

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抄録

Microstructures which control the ductility of eutectoid pearlite steel were experimentally examined. A concept of pearlite block has been proposed as an area in which crystallographic orientation of ferrite is constant. It was revealed that pearlite block acts as a unit of slip and fracture of pearlite steels. Refinement of austenite grains which is effective in improving the ductility of pearlite steels was analyzed to be due to the resulting refinement of pearlite blocks. Increase in ductility was found to be due to the increase in ductile mode area at the fractured surface. Discrepancies of previous studies regarding the roles of cementite lamellar spacing and pearlite colonies could be consistently explained in terms of the pearlite block concept.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 42 (7), 708-715, 1978

    公益社団法人 日本金属学会

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