Transmission electron microscopy observations on Cu-Ti alloy systems

研究成果: Conference contribution

6 被引用数 (Scopus)

抄録

Phase separation behaviors of a quenched Cu-3.0at%Ti alloy, as well as crystallographic structures of Cu-20.7at%Ti alloy have been studied using transmission electron microscopy. The furnace-cooled Cu-20.7at%Ti alloy are composed of Cr-Cu4Ti (Ni4Mo-type) and β-Cu 4Ti (Au4Zr-type) with the orientation relationship of (011)α//(110)β, [100]α//[001] β. As-quenched Cu-3.0at%Ti alloy showed a modulated structure with the modulation length of about 4 nm. When aged at 723K for 8 hr, the αCu4Ti phase emerges within the modulated or tweed-like microstructure. Prolonged aging results in the growth of the Ce-Cu4Ti particles and the loss of coherency. It is likely that as-quenched Cu-3.0at%Ti alloy decomposes spinodally at 723K, followed by polymorphous ordering; though the present study did not exclude, as an alternative path, a decomposition mechanism based on the catastrophic nucleation.

本文言語English
ホスト出版物のタイトルNew Frontiers of Processing and Eng. in Advanced Materials - Proc. of the Int. Conf. on New Frontiers of Process Science and Eng. in Advanced Materials, PSEA' 04 - The 14th Iketani Conference
出版社Trans Tech Publications Ltd
ページ163-168
ページ数6
ISBN(印刷版)0878499806, 9780878499809
DOI
出版ステータスPublished - 2005 1 1
外部発表はい
イベントInternational Conference on New Frontiers of Process Science and Engineering in Advanced Materials, PSEA' 04 - Kyoto, Japan
継続期間: 2004 11 242004 11 26

出版物シリーズ

名前Materials Science Forum
502
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

OtherInternational Conference on New Frontiers of Process Science and Engineering in Advanced Materials, PSEA' 04
国/地域Japan
CityKyoto
Period04/11/2404/11/26

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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