Early stages of spinodal decomposition in Fe-Cr resolved by in-situ small-angle neutron scattering
(2015) In Applied Physics Letters 106(6).- Abstract
- In-situ, time-resolved small-angle neutron scattering (SANS) investigations of the early stages of the spinodal decomposition process in Fe-35Cr were performed at 773 and 798K. The kinetics of the decomposition, both in terms of characteristic distance and peak intensity, followed a power-law behaviour from the start of the heat treatment (a' = 0.10-0.11 and a '' = 0.67-0.86). Furthermore, the method allows tracking of the high-Q slope, which is a sensitive measure of the early stages of decomposition. Ex-situ SANS and atom probe tomography were used to verify the results from the in-situ investigations. Finally, the in-situ measurement of the evolution of the characteristic distance at 773K was compared with the predictions from the... (More)
- In-situ, time-resolved small-angle neutron scattering (SANS) investigations of the early stages of the spinodal decomposition process in Fe-35Cr were performed at 773 and 798K. The kinetics of the decomposition, both in terms of characteristic distance and peak intensity, followed a power-law behaviour from the start of the heat treatment (a' = 0.10-0.11 and a '' = 0.67-0.86). Furthermore, the method allows tracking of the high-Q slope, which is a sensitive measure of the early stages of decomposition. Ex-situ SANS and atom probe tomography were used to verify the results from the in-situ investigations. Finally, the in-situ measurement of the evolution of the characteristic distance at 773K was compared with the predictions from the Cahn-Hilliard-Cook model, which showed good agreement with the experimental data (a' = 0.12-0.20 depending on the assumed mobility). (C) 2015 AIP Publishing LLC. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5305197
- author
- Hornqvist, M. ; Thuvander, M. ; Steuwer, Axel LU ; King, S. ; Odqvist, J. and Hedstrom, P.
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics Letters
- volume
- 106
- issue
- 6
- article number
- 061911
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000349845300030
- scopus:84923917089
- ISSN
- 0003-6951
- DOI
- 10.1063/1.4908250
- language
- English
- LU publication?
- yes
- id
- 48c041d4-b82c-47b9-bf99-a62a36b0a5f5 (old id 5305197)
- date added to LUP
- 2016-04-01 10:24:10
- date last changed
- 2022-01-25 22:52:28
@article{48c041d4-b82c-47b9-bf99-a62a36b0a5f5,
abstract = {{In-situ, time-resolved small-angle neutron scattering (SANS) investigations of the early stages of the spinodal decomposition process in Fe-35Cr were performed at 773 and 798K. The kinetics of the decomposition, both in terms of characteristic distance and peak intensity, followed a power-law behaviour from the start of the heat treatment (a' = 0.10-0.11 and a '' = 0.67-0.86). Furthermore, the method allows tracking of the high-Q slope, which is a sensitive measure of the early stages of decomposition. Ex-situ SANS and atom probe tomography were used to verify the results from the in-situ investigations. Finally, the in-situ measurement of the evolution of the characteristic distance at 773K was compared with the predictions from the Cahn-Hilliard-Cook model, which showed good agreement with the experimental data (a' = 0.12-0.20 depending on the assumed mobility). (C) 2015 AIP Publishing LLC.}},
author = {{Hornqvist, M. and Thuvander, M. and Steuwer, Axel and King, S. and Odqvist, J. and Hedstrom, P.}},
issn = {{0003-6951}},
language = {{eng}},
number = {{6}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Applied Physics Letters}},
title = {{Early stages of spinodal decomposition in Fe-Cr resolved by in-situ small-angle neutron scattering}},
url = {{http://dx.doi.org/10.1063/1.4908250}},
doi = {{10.1063/1.4908250}},
volume = {{106}},
year = {{2015}},
}