Ａｌ‐Ｚｎ合金のスピノーダル温度の上下におけるＧＰゾーンの形成，成長について

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タイトル別名
  • On the formation and growth of G. P. zones in Al-Zn alloy above or below the spinodal temperature
  • Al Zn ゴウキン ノ スピノーダル オンド ノ ジョウゲ ニ オケル G

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抄録

Measurements of electrical resistivity and intensity of small-angle X-ray scattering and transmission electron microscopy were made on several compositions of Al-Zn alloys. G. P. zones are formed above the spinodal temperature in the nucleation-and-growth mechanism. The nucleus has a critical size for growth. This size becomes larger when aged at higher temperatures. The G. P. zones formed in this mechanism distribute broadly, but those formed by the spinodal decomposition do closely. The number of G. P. zones is much larger in the latter case (127°C) than that in the former (132°C). The spinodal temperatures estimated for Al-10.0, 12.5, 15.0 and 20.0wt% Zn alloys are 90-95°, 105-110°, 125-130° and 170-180°C respectively. The critical temperatures below which G. P. zones are observed in these alloys are 105-115°, 125-135°, 150-160° and 200-210°C respectively.

収録刊行物

  • 軽金属

    軽金属 29 (8), 315-321, 1979

    一般社団法人 軽金属学会

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