焼結モリブデン合金の低温変形

DOI Web Site Web Site 被引用文献2件

書誌事項

タイトル別名
  • Low Temperature Deformation of Sintered Mo Alloys
  • ショウケツ モリブデン ゴウキン ノ テイオン ヘンケイ

この論文をさがす

説明

Low temperature deformation of powder metallurgical pure Mo and dilute Mo-Cr, Mo-W alloys are studied over the temperature range from 77 to 500°K by simple tension, stress relaxation and incremental unloading tests. The experimental results show that substitutional solute atoms do not affect the activation volume V* and the thermal component of the flow stress σ*, but affect flow stress σ through the athermal component σμ. From the relation Hk=4τ*V*, the kink energy Hk is calculated to be 0.58 eV both for pure Mo and Mo alloys. The activation energy H is deduced to be 1.40 eV at 500°K, which is in good agreement with 1.48 eV obtained from Seeger’s equation proposed for the Peierls-Nabarro process at low stress. It is concluded from the present results that low temperature deformation (T<500°K) is controlled by the overcoming of Peierls-Nabaroo hills by the nucleation of double kinks and that substitutional solute atoms increase only the athermal component of the flow stress.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 38 (12), 1178-1185, 1974

    公益社団法人 日本金属学会

被引用文献 (2)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ