On misfit-compensating ledges/disconnections

M. G. Hall, T. Furuhara, H. I. Aaronson, J. P. Hirth

研究成果: Article査読

17 被引用数 (Scopus)

抄録

The evidence for and use of the term misfit-compensating ledge or disconnection as a description for a type of defect found at some interphase boundaries is reviewed and further developed. Analyses are presented for the fcc/hcp, trigonal/hcp and bcc/hcp boundary cases and a new computer near coincidence site (NCS) simulation of the bcc/hcp case is undertaken. The results of the NCS analysis are in good agreement with previous O-lattice modeling. These results are also equivalent to those obtained by direct inspection of the dichromatic complex of the structures forming the interface. The analyses were compared with TEM observations of interphase boundaries formed in a Ti-6.62%Cr alloy where the disconnections were observed to be arranged in pairs and to have Burgers vectors with a component of 1/2[0001]. The observations are interpreted in terms of the dichromatic complex.

本文言語English
ページ(範囲)3487-3492
ページ数6
ジャーナルActa Materialia
49
17
DOI
出版ステータスPublished - 2001 10月 9
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • セラミックおよび複合材料
  • ポリマーおよびプラスチック
  • 金属および合金

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