鋳鉄の成長挙動に及ぼす黒鉛形態と基地組織の影響 Effect of Graphite Morphology and Microstructure on Growth in Cast Irons

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  The growth of cast irons is referred to as the irreversible increase and unusual change in dimension after cyclic heating. In order to reveal the effect of microstructural features on the growth of cast irons, the dilatometric examination was carried out using flake graphite and spheroidal graphite cast irons in critical range of 923 K and 1225K by cyclic heating with furnace-cooling and air-cooling. Little relation lies between graphite morphology and the growth behavior. The growth is comparatively small, due to carbon consumption for pearlite transformation when the air-cooling is employed in cyclic heating. The growth is remarkably enhanced by the expansion of martensitic transformation when cast irons contain hardening elements, such as Mo and Ni. The present work of the growth of flake and spheroidal graphite cast irons is theoretically explained by the growth mechanism of irreversible graphite migration.

収録刊行物

  • 鋳造工学 = Journal of Japan Foundry Engineering Society

    鋳造工学 = Journal of Japan Foundry Engineering Society 70(11), 806-811, 1998-11

    公益社団法人 日本鋳造工学会

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各種コード

  • NII論文ID(NAID)
    10002554371
  • NII書誌ID(NCID)
    AN10514770
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13420429
  • NDL 記事登録ID
    4604983
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-277
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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