加工熱処理によるCu-Ti合金の強度の改善

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タイトル別名
  • Improvement of Strength by Thermo-Mechanical Treatment in Cu-Ti Alloys
  • カコウ ネツ ショリ ニヨル Cu Ti ゴウキン ノ キョウド ノ カイゼン

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抄録

The strengthening by thermo-mecanical treatment in both Cu-4%Ti and Cu-4%Ti-0.11%Zr alloys was studied by micro-hardness measurements, tensile tests, electron microscopy, and X-ray diffraction.<BR>The following conclusions were obtained.<BR>When the both alloys preaged at 450°C for various times were cold-rolled up to 90% and then annealed finally at 450°C for a short time, their strength was remarkably increased up to 1300 MPa in ultimate tensile strength.<BR>As the annealing temperature was lowered the annealing time required to obtain a maximum hardness by the final annealing was longer.<BR>The increment of hardness by the final annealing depended on the amount of cold rolling, and linear relationships existed between the increments in hardness by cold working and final annealing.<BR>When preageing time was increased, the increment in hardness by the final annealing was decreased to a minimum and then it was increased. The maximum value of the increment in hardness was obtained for the specimens with few supersaturated Ti atoms after preageing.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 42 (3), 275-280, 1978

    公益社団法人 日本金属学会

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