Simulation of X-ray diffraction-line broadening due to dislocations in a model composite material

Teunis Cornelis Bor, H.H.M. Cleveringa, R Delhez, E. van der Giessen

Research output: Contribution to journalArticleAcademic

5 Citations (Scopus)

Abstract

X-ray diffraction-line profiles of two-dimensional, plastically deformed model composite materials are calculated and analysed in detail. The composite consists of elastic reinforcements in a crystalline solid and is subjected to macroscopic shear. Slip occurs in the matrix only due to the collective motion of discrete dislocations on a single set of parallel slip planes. The results of dislocation dynamics computations are used as input for the calculation of the line profiles. The line profiles are computed directly using the kinematics approach, without making a priori assumptions on the dislocation distributions. Two steps are required. First, the full intensity distribution of a single crystal of composite material is calculated. Then, assuming a perfectly random orientation distribution of such single crystals, powder diffraction-line profiles are determined. Results will be presented for several orders of reflection and in different crystallographic directions. The broadening of the line profiles is shown to be not only determined by the density of dislocations, but also by their spatial distribution.
Original languageUndefined
Pages (from-to)505-509
JournalMaterials science and engineering
Volume309-31
DOIs
Publication statusPublished - 2001

Keywords

  • IR-75612
  • Discrete dislocation plasticity
  • Model composite
  • Simulation of X-ray diffraction

Cite this

@article{aadfdbe52fef43d99c592be297c47766,
title = "Simulation of X-ray diffraction-line broadening due to dislocations in a model composite material",
abstract = "X-ray diffraction-line profiles of two-dimensional, plastically deformed model composite materials are calculated and analysed in detail. The composite consists of elastic reinforcements in a crystalline solid and is subjected to macroscopic shear. Slip occurs in the matrix only due to the collective motion of discrete dislocations on a single set of parallel slip planes. The results of dislocation dynamics computations are used as input for the calculation of the line profiles. The line profiles are computed directly using the kinematics approach, without making a priori assumptions on the dislocation distributions. Two steps are required. First, the full intensity distribution of a single crystal of composite material is calculated. Then, assuming a perfectly random orientation distribution of such single crystals, powder diffraction-line profiles are determined. Results will be presented for several orders of reflection and in different crystallographic directions. The broadening of the line profiles is shown to be not only determined by the density of dislocations, but also by their spatial distribution.",
keywords = "IR-75612, Discrete dislocation plasticity, Model composite, Simulation of X-ray diffraction",
author = "Bor, {Teunis Cornelis} and H.H.M. Cleveringa and R Delhez and {van der Giessen}, E.",
year = "2001",
doi = "10.1016/S0921-5093(00)01648-8",
language = "Undefined",
volume = "309-31",
pages = "505--509",
journal = "Materials science and engineering",
issn = "0025-5416",
publisher = "Elsevier",

}

Simulation of X-ray diffraction-line broadening due to dislocations in a model composite material. / Bor, Teunis Cornelis; Cleveringa, H.H.M.; Delhez, R; van der Giessen, E.

In: Materials science and engineering, Vol. 309-31, 2001, p. 505-509.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - Simulation of X-ray diffraction-line broadening due to dislocations in a model composite material

AU - Bor, Teunis Cornelis

AU - Cleveringa, H.H.M.

AU - Delhez, R

AU - van der Giessen, E.

PY - 2001

Y1 - 2001

N2 - X-ray diffraction-line profiles of two-dimensional, plastically deformed model composite materials are calculated and analysed in detail. The composite consists of elastic reinforcements in a crystalline solid and is subjected to macroscopic shear. Slip occurs in the matrix only due to the collective motion of discrete dislocations on a single set of parallel slip planes. The results of dislocation dynamics computations are used as input for the calculation of the line profiles. The line profiles are computed directly using the kinematics approach, without making a priori assumptions on the dislocation distributions. Two steps are required. First, the full intensity distribution of a single crystal of composite material is calculated. Then, assuming a perfectly random orientation distribution of such single crystals, powder diffraction-line profiles are determined. Results will be presented for several orders of reflection and in different crystallographic directions. The broadening of the line profiles is shown to be not only determined by the density of dislocations, but also by their spatial distribution.

AB - X-ray diffraction-line profiles of two-dimensional, plastically deformed model composite materials are calculated and analysed in detail. The composite consists of elastic reinforcements in a crystalline solid and is subjected to macroscopic shear. Slip occurs in the matrix only due to the collective motion of discrete dislocations on a single set of parallel slip planes. The results of dislocation dynamics computations are used as input for the calculation of the line profiles. The line profiles are computed directly using the kinematics approach, without making a priori assumptions on the dislocation distributions. Two steps are required. First, the full intensity distribution of a single crystal of composite material is calculated. Then, assuming a perfectly random orientation distribution of such single crystals, powder diffraction-line profiles are determined. Results will be presented for several orders of reflection and in different crystallographic directions. The broadening of the line profiles is shown to be not only determined by the density of dislocations, but also by their spatial distribution.

KW - IR-75612

KW - Discrete dislocation plasticity

KW - Model composite

KW - Simulation of X-ray diffraction

U2 - 10.1016/S0921-5093(00)01648-8

DO - 10.1016/S0921-5093(00)01648-8

M3 - Article

VL - 309-31

SP - 505

EP - 509

JO - Materials science and engineering

JF - Materials science and engineering

SN - 0025-5416

ER -