５０８３合金の延性の温度依存性

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書誌事項

タイトル別名
  • The temperature dependence of ductility in 5083 alloy
  • 5083 ゴウキン ノ エンセイ ノ オンド イゾンセイ

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抄録

Tensile tests were proceeded at temperatures from -196°to 550°C. The load-elongation curve has different shapes in accordance with rise of the testing temperature such as homogeneous deformation at low temperatures and larger deformation at elevated temperatures. Typical superplastic deformation is found at the temperatures 400°C or above. The elongation is represented by the work-hardening index n at low temperatures and by the strain-rate sensitivity index m at elevated temperatures. The elongation about 180% at 550°C is smaller than that predicted by the m-value 0.5. In such a case, coarsening and shape change of grains and a number of voids are found near the fracture surface.

収録刊行物

  • 軽金属

    軽金属 29 (2), 47-51, 1979

    一般社団法人 軽金属学会

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