Modelling the X-ray powder diffraction of nitrogen-expanded austenite using the Debye formula

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Stress-free and homogeneous samples of nitrogen-expanded austenite, a defect-rich f.c.c. structure with a high interstitial nitrogen occupancy (between 0.36 and 0.61), have been studied using X-ray powder diffraction and Debye simulations. The simulations confirm the presence of deformation stacking faults in the structure, while twin or growth faulting can be ruled out. Screw dislocations are abundant and the dislocation density increases with the interstitial nitrogen occupancy. Whether the N atoms are clustered or distributed randomly among the octahedral interstices was found to be indistinguishable to X-ray powder diffraction.
Original languageEnglish
JournalJournal of Applied Crystallography
Volume41
Issue number3
Pages (from-to)537-543
ISSN0021-8898
DOIs
Publication statusPublished - 2008

Cite this

@article{cc234cfa68cf42db86ae663b45382a60,
title = "Modelling the X-ray powder diffraction of nitrogen-expanded austenite using the Debye formula",
abstract = "Stress-free and homogeneous samples of nitrogen-expanded austenite, a defect-rich f.c.c. structure with a high interstitial nitrogen occupancy (between 0.36 and 0.61), have been studied using X-ray powder diffraction and Debye simulations. The simulations confirm the presence of deformation stacking faults in the structure, while twin or growth faulting can be ruled out. Screw dislocations are abundant and the dislocation density increases with the interstitial nitrogen occupancy. Whether the N atoms are clustered or distributed randomly among the octahedral interstices was found to be indistinguishable to X-ray powder diffraction.",
author = "Jette Oddershede and Thomas Christiansen and Kenny St{\aa}hl",
year = "2008",
doi = "10.1107/S0021889808005943",
language = "English",
volume = "41",
pages = "537--543",
journal = "Journal of Applied Crystallography",
issn = "0021-8898",
publisher = "Wiley-Blackwell",
number = "3",

}

Modelling the X-ray powder diffraction of nitrogen-expanded austenite using the Debye formula. / Oddershede, Jette; Christiansen, Thomas; Ståhl, Kenny.

In: Journal of Applied Crystallography, Vol. 41, No. 3, 2008, p. 537-543.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Modelling the X-ray powder diffraction of nitrogen-expanded austenite using the Debye formula

AU - Oddershede, Jette

AU - Christiansen, Thomas

AU - Ståhl, Kenny

PY - 2008

Y1 - 2008

N2 - Stress-free and homogeneous samples of nitrogen-expanded austenite, a defect-rich f.c.c. structure with a high interstitial nitrogen occupancy (between 0.36 and 0.61), have been studied using X-ray powder diffraction and Debye simulations. The simulations confirm the presence of deformation stacking faults in the structure, while twin or growth faulting can be ruled out. Screw dislocations are abundant and the dislocation density increases with the interstitial nitrogen occupancy. Whether the N atoms are clustered or distributed randomly among the octahedral interstices was found to be indistinguishable to X-ray powder diffraction.

AB - Stress-free and homogeneous samples of nitrogen-expanded austenite, a defect-rich f.c.c. structure with a high interstitial nitrogen occupancy (between 0.36 and 0.61), have been studied using X-ray powder diffraction and Debye simulations. The simulations confirm the presence of deformation stacking faults in the structure, while twin or growth faulting can be ruled out. Screw dislocations are abundant and the dislocation density increases with the interstitial nitrogen occupancy. Whether the N atoms are clustered or distributed randomly among the octahedral interstices was found to be indistinguishable to X-ray powder diffraction.

U2 - 10.1107/S0021889808005943

DO - 10.1107/S0021889808005943

M3 - Journal article

VL - 41

SP - 537

EP - 543

JO - Journal of Applied Crystallography

JF - Journal of Applied Crystallography

SN - 0021-8898

IS - 3

ER -