A mesoscopic model of dissolution/disintegration of nanocrystalline metals via vacancy diffusion along grain boundaries

L. Klinger; I. Gotman; E. Rabkin

doi:10.1016/j.commatsci.2012.10.032

A mesoscopic model of dissolution/disintegration of nanocrystalline metals via vacancy diffusion along grain boundaries

L. Klinger
, I. Gotman
, E. Rabkin

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

We propose a model describing the growth of a two-dimensional subsurface pore induced by vacancy supersaturation on the surface of a polycrystal. We demonstrate that the pore develops narrow slits propagating along the grain boundaries which may lead to disintegration of nanocrystalline metal by grain detachment. Analytic models describing initial and final (on the verge of grain detachment) stages of pore growth are proposed. The models' predictions are in good agreement with the numerical simulation results.

Original language	English
Pages (from-to)	37-42
Number of pages	6
Journal	Computational Materials Science
Volume	76
DOIs	https://doi.org/10.1016/j.commatsci.2012.10.032
State	Published - 2013

Keywords

Corrosion
Grain boundary diffusion
Nanocrystalline metals
Oxidation
Surface diffusion

ASJC Scopus subject areas

General Computer Science
General Chemistry
General Materials Science
Mechanics of Materials
General Physics and Astronomy
Computational Mathematics

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10.1016/j.commatsci.2012.10.032

Cite this

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title = "A mesoscopic model of dissolution/disintegration of nanocrystalline metals via vacancy diffusion along grain boundaries",

abstract = "We propose a model describing the growth of a two-dimensional subsurface pore induced by vacancy supersaturation on the surface of a polycrystal. We demonstrate that the pore develops narrow slits propagating along the grain boundaries which may lead to disintegration of nanocrystalline metal by grain detachment. Analytic models describing initial and final (on the verge of grain detachment) stages of pore growth are proposed. The models' predictions are in good agreement with the numerical simulation results.",

keywords = "Corrosion, Grain boundary diffusion, Nanocrystalline metals, Oxidation, Surface diffusion",

author = "L. Klinger and I. Gotman and E. Rabkin",

note = "Funding Information: The author gratefully acknowledge the financial support by the European Commission{\textquoteright}s 7th Framework Programme under the project “Virtual Nanotanium-VINAT” (Contract No. 295322 ), coordinated with the State Contract No. 16.523.12.3002 of the Russian Ministry of Education and Science . The authors are grateful to Prof. E.Y. Gutmanas, Department of Materials Science and Engineering, Technion, for fruitful discussions.",

year = "2013",

doi = "10.1016/j.commatsci.2012.10.032",

language = "English",

volume = "76",

pages = "37--42",

journal = "Computational Materials Science",

issn = "0927-0256",

publisher = "Elsevier",

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TY - JOUR

T1 - A mesoscopic model of dissolution/disintegration of nanocrystalline metals via vacancy diffusion along grain boundaries

AU - Klinger, L.

AU - Gotman, I.

AU - Rabkin, E.

N1 - Funding Information: The author gratefully acknowledge the financial support by the European Commission’s 7th Framework Programme under the project “Virtual Nanotanium-VINAT” (Contract No. 295322 ), coordinated with the State Contract No. 16.523.12.3002 of the Russian Ministry of Education and Science . The authors are grateful to Prof. E.Y. Gutmanas, Department of Materials Science and Engineering, Technion, for fruitful discussions.

PY - 2013

Y1 - 2013

N2 - We propose a model describing the growth of a two-dimensional subsurface pore induced by vacancy supersaturation on the surface of a polycrystal. We demonstrate that the pore develops narrow slits propagating along the grain boundaries which may lead to disintegration of nanocrystalline metal by grain detachment. Analytic models describing initial and final (on the verge of grain detachment) stages of pore growth are proposed. The models' predictions are in good agreement with the numerical simulation results.

AB - We propose a model describing the growth of a two-dimensional subsurface pore induced by vacancy supersaturation on the surface of a polycrystal. We demonstrate that the pore develops narrow slits propagating along the grain boundaries which may lead to disintegration of nanocrystalline metal by grain detachment. Analytic models describing initial and final (on the verge of grain detachment) stages of pore growth are proposed. The models' predictions are in good agreement with the numerical simulation results.

KW - Corrosion

KW - Grain boundary diffusion

KW - Nanocrystalline metals

KW - Oxidation

KW - Surface diffusion

UR - https://www.scopus.com/pages/publications/84885025422

U2 - 10.1016/j.commatsci.2012.10.032

DO - 10.1016/j.commatsci.2012.10.032

M3 - Article

SN - 0927-0256

VL - 76

SP - 37

EP - 42

JO - Computational Materials Science

JF - Computational Materials Science

ER -

A mesoscopic model of dissolution/disintegration of nanocrystalline metals via vacancy diffusion along grain boundaries

Abstract

Keywords

ASJC Scopus subject areas

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