Characteristic of Ti-2at%Fe-10at%Si Powder Synthesized by Mechanical Alloying.

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  • Kobayashi Keizo
    National Institute of Advanced Industrial Science and Technology, Institute for Structural and Engineering Materials
  • Matsumoto Akihiro
    National Institute of Advanced Industrial Science and Technology, Institute for Structural and Engineering Materials
  • Ozaki Kimihiro
    National Institute of Advanced Industrial Science and Technology, Institute for Structural and Engineering Materials
  • Nishio Toshiyuki
    National Institute of Advanced Industrial Science and Technology, Institute for Structural and Engineering Materials

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Other Title
  • メカニカルアロイング合成したＴｉ‐２ａｔ％Ｆｅ‐１０ａｔ％Ｓｉ粉末の特性
  • メカニカルアロイング ゴウセイ シタ Ti 2atパーセントFe 10atパーセントSi フンマツ ノ トクセイ

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Description

Ti-2at%Fe-lOat%Si alloy powder was synthesized by a mechanical alloying (MA) using a planetary ball milling as start materials of Ti powder, Fe powder and Si powder. The powders obtained by milling for more than 1440 ks were amorphous state. The recovery percentage of mechanically alloyed powder increased with the milling time. However, the composition and the crystallization temperature of the MA powder were almost unchanged even by varying the milling time. In the case of mechanical alloying for Ti-2at%Fe-1Oat%Si, amorphous powder is produced gradually after adhesion of the MA powder to the MA vessel and MA balls.<BR>The coarse particles of about 2 mm diameter were prepared by the adhesion of amorphous powders during the MA. These coarse particles were formed by filling up the gap between the MA balls of 10mm diameter with amorphous powders. The formation of coarse particles during the MA was able to be prevented by coexistence of the ball with a different size.

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