Ａｌ‐Ｃｕ合金におけるθ′組織とその核生成サイト

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タイトル別名
  • θ' structure in relation to nucleation sites for θ' phase in Al-Cu alloys
  • Al Cu ゴウキン ニ オケル シータ ソシキ ト ソノ カク セイセイ サ

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抄録

Transmission electron microscopy was carried out on the Al-4%Cu alloy solution-treated at 793K for 7.2ks, quenched into iced water or directly quenched to an aging bath and subsequently aged for different times. Homogeneous precipitation of a θ' phase never occurs in any cases. The θ' structure actually observed is controlled by the θ' precipitates formed on dislocation loops, dislocation lines and/or θ". The θ' precipitates form on dislocation loops if specimens were water quenched or direct-quenched to comparatively low temperatures and aged; on considerably sparse dislocation lines if direct-quenched where neither loops nor θ" appear; and form on θ" if direct-quenched where loops never appear but θ" precipitates develope.

収録刊行物

  • 軽金属

    軽金属 32 (1), 26-31, 1982

    一般社団法人 軽金属学会

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