Ａｌ‐Ｍｇ‐Ｂｉ系合金押出丸棒の機械的性質と微細組織について

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書誌事項

タイトル別名
  • Mechanical properties and microstructures of extruded rods of Al-Mg-Si base alloys
  • Al Mg Siケイ ゴウキン オウデマルボウ ノ キカイテキ セイシツ ト

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説明

Some Al-Mg-Si commercial alloys were extruded at various temperatures and rates. Mechanical properties, optical and electron microstructures, and textures of the as extruded and T6 tempered rods were investigated.<br>The press effect was observed in the T6 tempered rods extruded above about 450°C and the rods exhibited about 10kg/mm2 higher yield and tensile strength than those of rods free from fibrous structures.<br>The critical extrusion conditions which produce the press effect depend on the magnitude of recrystallization retarding effect of dispersoids and can be understood qualitatively in terms of a critical stored energy.<br>The press effect may be resulted from two effects; the subgrain hardening effect and the <111> texture strengthening effect retained completely after solution heat treatment. The former contribution seems to be as large as that of the latter.

収録刊行物

  • 軽金属

    軽金属 33 (12), 718-728, 1983

    一般社団法人 軽金属学会

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