On the Structures of Cu-Al-Ni-Fe Cast Alloys. (Nickel Aluminium Bronze for Marine Propeller Alloys, 1st Report)

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  • Cu-Al-Ni-Fe 4元系鋳造合金の金属組織について
  • Cu-Al-Ni-Fe 4ゲンケイ チュウゾウ ゴウキン ノ キンゾク ソシキ ニ ツイテ

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Abstract

Some of the fundamental problems on the metallography of Cu-Al-Ni-Fe alloys encountered when it is used as castings such as large ship propellers are described. The α⁄α+δ-solubility limit curve, the coagulation of Ni- or Fe-rich compound phase,the phase fields at high temperatures and the structures of κ phase are discussed. The structural characteristics of the new alloys and the composition range applicable to large castings from the viewpoint of metallograpy is outlined.

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