６０６１アルミニウム合金を用いた摩擦肉盛によるアルミナ粒子の複合化

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タイトル別名
  • Fabrication of 6061 aluminum alloy/Al2O3 particle composites by friction surfacing
  • 6061 アルミニウム ゴウキン オ モチイタ マサツ ニクモリ ニ ヨル アルミナ リュウシ ノ フクゴウカ

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Friction surfacing of 6061 aluminum alloy plate by 6061 aluminum alloy bar filled with alumina particle as consumable rod, were done using a numerical control full automatic friction welding machine. Effect of the filling state of the alumina particle in a rod on the dispersion characteristic of the alumina particle in deposit was investigated. The scattering of the alumina particle was observed on appearance of the substrate clearly, but the shape of deposit was similar to the deposit without alumina particle. Regardless of the number of holes in rod, the surfacing efficiency increased with increasing surfacing speed. In addition, the surfacing efficiency of deposit with friction pressure 20 MPa showed higher value than that of the surfacing efficiency of deposit with friction pressure 25 MPa. But the difference of surfacing efficiency by the surfacing speed was small. The surfacing efficiency was decreased with increasing the number of holes in rod. As for the alumina particle, it was dispersed in a surface layer of deposit and the interface region near the substrate was stratified. The distribution of the alumina particle was stratified on central part of deposit and an intermediate part with RS side in deposit with 1HC rod which filled up an alumina particle centrally of the rod, and there was a little distribution to the other parts. Except the central part of the deposit, the existence of the alumina particle in deposit with 1H rod was identified, and it was dispersed in AS side in comparison with RS side comparatively uniformly. The distribution density of the alumina particle of the deposit with 2H and 4H rod showed a similar tendency to the deposit with 1H rod. However, the distribution density of deposit became larger in order of 1H, 2H, 4H. Wear resistance of 6061/6061 deposit was the lowest of all regardless of friction speed. Wear resistance of the deposit which dispersed alumina particles was improved in comparison with both substrate and 6061/6061 deposit, and it become larger in order of 4H, 2H, 1H.

収録刊行物

  • 軽金属

    軽金属 58 (7), 299-304, 2008

    一般社団法人 軽金属学会

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