Analysis of diffraction from (001) twist boundaries in cubic metals

Journal Article · Sat Oct 01 00:00:00 EDT 1983 · Acta Metall.; (United States)

DOI:https://doi.org/10.1016/0001-6160(83)90162-1· OSTI ID:6401698

Brokman, A; Balluffi, R W

An analysis of the diffraction from (001) twist boundaries in cubic metals has been made using analytical methods. A simple model for boundary structure involving rotational relaxations around O lattice elements in the boundary core was employed. The results yielded grain boundary diffracted intensity on a grain boundary diffraction lattice in reciprocal space. This lattice consisted of an array of line elements running parallel to the twist axis in a square pattern corresponding to the reciprocal lattice of the coincidence site lattice lying parallel to the grain boundary plane. The analytical model predicted the main features of experimentally observed diffracted intensities and also those obtained by computer simulation and revealed the physical origins of the diffraction effects. The generalization of the analytical model to include any type of boundary was indicated.

• Research Organization: Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge
• OSTI ID: 6401698
• Journal Information: Acta Metall.; (United States), Vol. 31:10
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
METALS
CUBIC LATTICES
DIFFRACTION
GRAIN BOUNDARIES
COMPUTERIZED SIMULATION
MATHEMATICAL MODELS
PHYSICAL METALLURGY
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELEMENTS
METALLURGY
MICROSTRUCTURE
SCATTERING
SIMULATION
360102* - Metals & Alloys- Structure & Phase Studies