Studies on the Precipitates of a Cu-Cr-Ti alloy by means of Extraction-Replica Technique (Studies on the Precipitation of a Cu-Cr-Ti Alloy 2nd Report)

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  • Extraction ReplicaによるCu-Cr-Ti合金の析出物に関する研究
  • Extraction Replica ニ ヨル Cu-Cr-Ti ゴウキン ノ セキシュツブツ ニ カンスル ケンキュウ

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Abstract

Identification of the precipitates was made by means of extraction-replica technique and extra-high voltage (300 kV) electronmicroscopy for Cu-0.54%Cr-3.06%Ti alloy, which was solution-treated and aged at various temperatures from 550°C to 700°C. The results obtained by micro diffraction method were as follows; The particles of insoluble plase, the precipitates of pearlite type and of Widmanstätten type were β′-Cu3Ti and the precipitates of box type were γ-TiCr2. On the basis of the results on the identification of the precipitates, the author discussed the precipitation process of this alloy.

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