3.5 GPa級マルエージング鋼の窒化と疲労

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タイトル別名
  • Fatigue Properties of 3.5 GPa-grade Maraging Steels with or without Nitriding
  • 3 5GPaキュウ マルエージング コウ ノ チッカ ト ヒロウ

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抄録

Fatigue properties of 3.5 GPa-grade maraging steels (8%Ni, 18 or 20%Co, 14 or 12%Mo) with or without nitriding were investigated. Data of specimens without nitriding were very scattered. When the age-hardened alloys were nitrided for 10 to 15 min at 500°C in NH3, mean values of fatigue strength were increased and the scatter bands were shrunk. After excess nitriding, the surface hardness was decreased and the specimens were embrittled. The role of non-metallic inclusions as sources of fatigue crack may be very important and clean materials were expected.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 46 (4), 441-445, 1982

    公益社団法人 日本金属学会

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