Measurement of Acoustic Radiation from the Struck Stich of γ' Martensitic Cu-14wt%Al-8wt%Ni Sintered Ternary Alloy

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  • γ′マルテンサイト型Ｎｉ・Ａｌ青銅焼結合金の音響特性
  • ガンマ マルテンサイトガタ Ni Al セイドウ ショウケツ ゴウキン ノ オ

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Abstract

By using an acoustic method, the duration of reverberation of γ′-Ni·Al bronze sintered alloy was compared with those of Cu-10wt%Sn, Fe-10wt%Cu and α-Ni·Al bronze sintered alloys. The relationship between the duration of reverberation and internal friction was discussed. It was found that the duration of reverberation in this γ′-Ni·Al bronze sintered alloy is extremely shorter than those in other alloys, and decreases linearly with increasing internal friction.

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