Ａｌ‐Ｓｉ系急冷凝固粉末冶金合金の固相接合

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タイトル別名
  • Solid phase bonding of rapidly solidified powder metallurgy Al-Si system alloy.
  • Al Siケイ キュウレイ ギョウコ フンマツ ヤキン ゴウキン ノ コソウ

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抄録

Rapidly solidified powder metallurgy Al-Si-3%Cu-1%Mg alloy (20, 25, 30%Si) were jointed by friction welding. Regardless of the silicon content, the tensile strength of welded joints were lower than those of the base metals. Elongation of welded joints of Al-30%Si-3%Cu-1%Mg alloy was nearly equal to that of the base metal. On the other hand, those of Al-20%Si-3%Cu-1%Mg and Al-25%Si-3%Cu-1%Mg alloys were slightly lower. All the friction welded joints were fractured at the weld interface. As for the heat affected zone, the hardness increased in a narrower range than that of the base metal while in the position 4mm distance from the weld interface. The original fibrous structures were pressed forward to the outside along the flux of burr on the heat affected zone by the heat and axial pressure at the welding process, while they disappeared near the weld interface, and welded layer formed at the weld interface.

収録刊行物

  • 軽金属

    軽金属 41 (10), 693-698, 1991

    一般社団法人 軽金属学会

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