高炭素高速度鋳鋼の熱処理及びころがり疲労特性 Characteristic of Heat Treatment and Rolling Contact Fatigue of High Speed Cast Steel Containing High Carbon

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  Fe-1.8 % C-Cr-Mo-W-V-Co alloys varying in 4 % and 7 % of vanadium content, 0 % and 5 % of cobalt content and 5 % of each alloying element (Cr, Mo and W) were produced by casting. The characteristics of heat treatment with these alloys quenched and tempered were investigated and their rolling contact fatigue strength was studied. The quenching temperature at which the highest matrix hardness was obtained for quenched alloys became higher as the vanadium content was increased. Tempering at about 773 K resulted in the secondary hardening of the alloys. The high vanadium alloy, which contained less plate-like or rod-like M<sub>2</sub>C carbides and more granular MC carbides, showed excellent rolling contact fatigue characteristics. Since the interface between the carbides and matrix had many defects, binding force between the carbides and matrix was small and cracks propagated along the defective interface. Cracks also passed through plate-like or rod-like brittle M<sub>2</sub>C carbides which were highly sensitive to notch effects when they intersected the carbides.

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 71(2), 85-91, 1999-02 

    Japan Foundry Engineering Society

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各種コード

  • NII論文ID(NAID)
    10002554763
  • 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
    4658630
  • 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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