高温顕微鏡によるα+β黄銅の加熱途中の相変化

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タイトル別名
  • Fundamental Studies on the Homogenous Structure in α+β Brass; (II, Changes of Structure in α+β Brass at High Temperature Observed by High-Temperature Microscope)
  • コウオン ケンビキョウ ニ ヨル アルファ ベータ オウドウ ノ カネツ トチュウ ノ ソウヘンカ
  • Fundamental Studies on the Homogenous Structure in α+β Brass; (II, Changes of Structure in α+β Brass at High Temperature Observed by High-Temperature Microscope)

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抄録

Specimens of α+β brass of 59.98%Cu, of 3 mm×10 mm×10 mm size cut out from an ingot of 30 mm×90 mm×180 mm size and polished but not etched were studied under a high-temperature microscope, to examine continuously the changes in structure under elevated temperature, beginning at room temperature and rising to 780°C. The results obtained were as follows: (1) Unevenness appeared in the β-grains at 400∼550°C, while the α-grains grew larger, the volume of α feaching the maximum at 550°C (2) α began to be absorbed by β in the vicinity of 600°C (3) At constant temperature, the larger was the absorption of α by β, the longer the holding time, and the absorption was the larger, the higher the temperature. (4) In the β-monophase range under high temperature, new β-grain boundaries were formed crossing the original boundaries, and while making vehement translocations, steadily went on stabilizing.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 25 (11), 685-688, 1961

    公益社団法人 日本金属学会

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