--- _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' ...