---
_id: '4111'
abstract:
- lang: eng
text: "In this article we study the elemental distribution and solute solubility
in nanocrystalline alloys of immiscible components near restricted equilibrium
for the case of the binary Cu–Ag system. As predicted from thermodynamic considerations,
a grain boundary segregated monophase alloy is observed in the annealed mechanically
alloyed state for low Ag content by using atom probe tomography. From the detected
Ag solute grain boundary enrichment the\r\nsegregation free enthalpy is estimated
to range between -25 and -49 kJ mol^-1 following the McLean equation, in agreement
with values reported for coarse-grained Cu–Ag. The extension of the alloying range
is described by a two-domain thermodynamic model that considers the excess free
volume in the grain boundaries and the strain in the strain interior on the basis
of the universal equation of state at negative pressure. To access the grain boundary
volumetric strain experimentally, a method based on a combination of density measurements
and microscopical quantification of closed pore areas is presented. Moreover,
we apply x-ray diffraction line broadening analysis to determine the local strain
amplitude, which yields a root-mean-square microstrain of \x180.3% for a grain
size of \x1830 nm. It is shown that the grain boundary free volume represents
the major origin for the global solubility enhancement in\r\nnanocrystalline Cu–Ag
at 503 K."
article_number: 115401 (9 pp.)
article_type: original
author:
- first_name: Thomas
full_name: Riedl, Thomas
id: '36950'
last_name: Riedl
- first_name: A
full_name: Kirchner, A
last_name: Kirchner
- first_name: K
full_name: Eymann, K
last_name: Eymann
- first_name: A
full_name: Shariq, A
last_name: Shariq
- first_name: R
full_name: Schlesiger, R
last_name: Schlesiger
- first_name: G
full_name: Schmitz, G
last_name: Schmitz
- first_name: M
full_name: Ruhnow, M
last_name: Ruhnow
- first_name: B
full_name: Kieback, B
last_name: Kieback
citation:
ama: 'Riedl T, Kirchner A, Eymann K, et al. Elemental distribution, solute solubility
and defect free volume in nanocrystalline restricted-equilibrium Cu–Ag alloys.
Journal of Physics: Condensed Matter. 2013;25(11). doi:10.1088/0953-8984/25/11/115401'
apa: 'Riedl, T., Kirchner, A., Eymann, K., Shariq, A., Schlesiger, R., Schmitz,
G., … Kieback, B. (2013). Elemental distribution, solute solubility and defect
free volume in nanocrystalline restricted-equilibrium Cu–Ag alloys. Journal
of Physics: Condensed Matter, 25(11). https://doi.org/10.1088/0953-8984/25/11/115401'
bibtex: '@article{Riedl_Kirchner_Eymann_Shariq_Schlesiger_Schmitz_Ruhnow_Kieback_2013,
title={Elemental distribution, solute solubility and defect free volume in nanocrystalline
restricted-equilibrium Cu–Ag alloys}, volume={25}, DOI={10.1088/0953-8984/25/11/115401},
number={11115401 (9 pp.)}, journal={Journal of Physics: Condensed Matter}, publisher={IOP
Publishing}, author={Riedl, Thomas and Kirchner, A and Eymann, K and Shariq, A
and Schlesiger, R and Schmitz, G and Ruhnow, M and Kieback, B}, year={2013} }'
chicago: 'Riedl, Thomas, A Kirchner, K Eymann, A Shariq, R Schlesiger, G Schmitz,
M Ruhnow, and B Kieback. “Elemental Distribution, Solute Solubility and Defect
Free Volume in Nanocrystalline Restricted-Equilibrium Cu–Ag Alloys.” Journal
of Physics: Condensed Matter 25, no. 11 (2013). https://doi.org/10.1088/0953-8984/25/11/115401.'
ieee: 'T. Riedl et al., “Elemental distribution, solute solubility and defect
free volume in nanocrystalline restricted-equilibrium Cu–Ag alloys,” Journal
of Physics: Condensed Matter, vol. 25, no. 11, 2013.'
mla: 'Riedl, Thomas, et al. “Elemental Distribution, Solute Solubility and Defect
Free Volume in Nanocrystalline Restricted-Equilibrium Cu–Ag Alloys.” Journal
of Physics: Condensed Matter, vol. 25, no. 11, 115401 (9 pp.), IOP Publishing,
2013, doi:10.1088/0953-8984/25/11/115401.'
short: 'T. Riedl, A. Kirchner, K. Eymann, A. Shariq, R. Schlesiger, G. Schmitz,
M. Ruhnow, B. Kieback, Journal of Physics: Condensed Matter 25 (2013).'
date_created: 2018-08-23T13:18:34Z
date_updated: 2022-01-06T07:00:18Z
ddc:
- '530'
department:
- _id: '15'
- _id: '286'
doi: 10.1088/0953-8984/25/11/115401
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-23T13:21:21Z
date_updated: 2018-08-23T13:21:21Z
file_id: '4112'
file_name: Elemental distribution, solute solubility and defect free volume in nanocrystalline
restricted-equilibrium Cu-Ag alloys.pdf
file_size: 1116530
relation: main_file
success: 1
file_date_updated: 2018-08-23T13:21:21Z
has_accepted_license: '1'
intvolume: ' 25'
issue: '11'
language:
- iso: eng
publication: 'Journal of Physics: Condensed Matter'
publication_identifier:
issn:
- 0953-8984
- 1361-648X
publication_status: published
publisher: IOP Publishing
status: public
title: Elemental distribution, solute solubility and defect free volume in nanocrystalline
restricted-equilibrium Cu–Ag alloys
type: journal_article
user_id: '55706'
volume: 25
year: '2013'
...