A study of grain boundary translational states in a Σ3[110]/(111) bicrystal

Pierre A Deymier, M. Shamsuzzoha, J. D. Weinberg

Research output: Contribution to journalArticle

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Abstract

High-resolution electron microscopy images of a Σ3[110]/(111) bicrystal produced by heavy cold rolling and annealing show a multiplicity of grain boundary core structures. Two grain boundary states are separated by a partial grain boundary dislocation with Burgers vector b = 1 2 b1 (where b1 = 1 6[112] is the Burgers vector of a secondary dislocation). This implies a change in translational state. All other structures are related through continuous transport of atoms from one grain to the other resulting in [111] grain boundary steps. Calculations of the energy associated with the observed structures indicate that the two perfect twin states t = 0 and 2b1 are stable, while all other grain boundary translational states are metastable.

Original languageEnglish (US)
Pages (from-to)1571-1577
Number of pages7
JournalActa Metallurgica et Materialia
Volume39
Issue number7
DOIs
StatePublished - 1991

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Bicrystals
Grain boundaries
Burgers vector
Dislocations (crystals)
High resolution electron microscopy
Cold rolling
Annealing
Atoms

ASJC Scopus subject areas

  • Engineering(all)

Cite this

A study of grain boundary translational states in a Σ3[110]/(111) bicrystal. / Deymier, Pierre A; Shamsuzzoha, M.; Weinberg, J. D.

In: Acta Metallurgica et Materialia, Vol. 39, No. 7, 1991, p. 1571-1577.

Research output: Contribution to journalArticle

Deymier, Pierre A ; Shamsuzzoha, M. ; Weinberg, J. D. / A study of grain boundary translational states in a Σ3[110]/(111) bicrystal. In: Acta Metallurgica et Materialia. 1991 ; Vol. 39, No. 7. pp. 1571-1577.
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