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Title: Wetting and Structural Transition Induced by Segregation at Grain Boundaries: A Monte Carlo Study

Abstract

Wetting of the {Sigma}=5 (310) {l_angle} 001{r_angle} symmetrical tilt grain boundary (GB) close to the solubility limit in the Cu(Ag) solid solution has been observed by means of Monte Carlo simulations at T=600 K . More precisely, a finite thickness film almost pure in Ag, separating the two initial Cu(Ag) grains, can be obtained from a critical intergranular germ induced by the strong segregation of Ag in the GB. As this film is actually a single crystal, this implies a complete rearrangement of the GB core structure. Thus the initial GB is replaced by two Cu(Ag)/Ag(Cu) interfaces. Evidence is presented for the increase of the film thickness when approaching the solubility limit, as expected in wetting phenomena.

Authors:
; ; ;
Publication Date:
Sponsoring Org.:
(US)
OSTI Identifier:
40204679
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 86; Journal Issue: 25; Other Information: DOI: 10.1103/PhysRevLett.86.5735; Othernumber: PRLTAO000086000025005735000001; 013126PRL; PBD: 18 Jun 2001; Journal ID: ISSN 0031-9007
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GRAIN BOUNDARIES; MONOCRYSTALS; SEGREGATION; SOLID SOLUTIONS; SOLUBILITY; THICKNESS

Citation Formats

Creuze, Jerome, Berthier, Fabienne, Tetot, Robert, and Legrand, Bernard. Wetting and Structural Transition Induced by Segregation at Grain Boundaries: A Monte Carlo Study. United States: N. p., 2001. Web. doi:10.1103/PhysRevLett.86.5735.
Creuze, Jerome, Berthier, Fabienne, Tetot, Robert, & Legrand, Bernard. Wetting and Structural Transition Induced by Segregation at Grain Boundaries: A Monte Carlo Study. United States. doi:10.1103/PhysRevLett.86.5735.
Creuze, Jerome, Berthier, Fabienne, Tetot, Robert, and Legrand, Bernard. Mon . "Wetting and Structural Transition Induced by Segregation at Grain Boundaries: A Monte Carlo Study". United States. doi:10.1103/PhysRevLett.86.5735.
@article{osti_40204679,
title = {Wetting and Structural Transition Induced by Segregation at Grain Boundaries: A Monte Carlo Study},
author = {Creuze, Jerome and Berthier, Fabienne and Tetot, Robert and Legrand, Bernard},
abstractNote = {Wetting of the {Sigma}=5 (310) {l_angle} 001{r_angle} symmetrical tilt grain boundary (GB) close to the solubility limit in the Cu(Ag) solid solution has been observed by means of Monte Carlo simulations at T=600 K . More precisely, a finite thickness film almost pure in Ag, separating the two initial Cu(Ag) grains, can be obtained from a critical intergranular germ induced by the strong segregation of Ag in the GB. As this film is actually a single crystal, this implies a complete rearrangement of the GB core structure. Thus the initial GB is replaced by two Cu(Ag)/Ag(Cu) interfaces. Evidence is presented for the increase of the film thickness when approaching the solubility limit, as expected in wetting phenomena.},
doi = {10.1103/PhysRevLett.86.5735},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 25,
volume = 86,
place = {United States},
year = {2001},
month = {6}
}