60Cr-25Fe-15Mo系合金の高温特性におよぼす熔製雰囲気の影響について

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タイトル別名
  • Effect of Melting Atmosphere on High Temperature Properties of 60Cr-25Fe-15Mo Type Alloys. (Studies of Cr-Base Heat-Resisting Alloys, 3rd Report)
  • 60Cr-25Fe-15Moケイ ゴウキン ノ コウオン トクセイ ニ オヨボス ヨウセイ フンイキ ノ エイキョウ ニ ツイテ

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抄録

60%Cr-25%Fe-15%Mo alloy, as base composition was added 2% of Ti, a part of Fe in it was replaced with 10%Co, or subjected to Fe replacement with 10%Co addition of 2% of Ti. The specimens were prepared by air melting in a Tammann furnace, and by air melting or by low pressure melting in a high frequency induction furnace. The effect of the melting atmosphere and the alloys’ composition on the as-cast hardness, the aging hardness, the creep strength, and the microstructures etc, were investigated. In low pressure-melted alloys, the hardness was found to be lower, the deformation ability to be more excellent, and the increase of creep strength by Ti addition to be more remarkable, than in those of air-melted alloys. Then, the hot working was impossible in air-melted alloy of base composition, but was possible in low pressure-melted alloy of base composition. Hot worked alloy was found to [be more excellent in creep strength than cast alloys.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 25 (2), 108-112, 1961

    公益社団法人 日本金属学会

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