Modelling intergranular stress corrosion cracking in simulated three-dimensional microstructures

A. P. Jivkov; N. P C Stevens; T James Marrow

Modelling intergranular stress corrosion cracking in simulated three-dimensional microstructures

A. P. Jivkov, N. P C Stevens, T James Marrow

Oxford University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Microstructure can have a significant effect on the resistance to intergranular stress corrosion cracking. Certain grain boundaries are susceptible to corrosion while others have high resistance and may form crack bridging ligaments as the crack deviates around them. To investigate the mechanics of crack bridging, 3D computational model has been previously developed. An extension to the model, to include stress corrosion crack growth kinetics is presented in this paper. An analysis of the effects of resistant grain boundary fraction demonstrates that the bridging ligaments can significantly retard short crack propagation rates. Increasing the fraction of resistant boundaries is shown to improve microstructure resistance by reducing the crack propagation rate.

Original language	English
Title of host publication	Key Engineering Materials\|Key Eng Mat
Place of Publication	LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
Publisher	Trans Tech Publications Ltd
Pages	1019-1022
Number of pages	3
Volume	345-346
Publication status	Published - 2007
Event	10th International Conference on Mechanical Behaviour of Materials - Busan, Korea Duration: 27 May 2007 → 31 May 2007

Publication series

Name	Mechanical Behavior of Materials X, Pts 1and 2

Conference

Conference	10th International Conference on Mechanical Behaviour of Materials
City	Busan, Korea
Period	27/05/07 → 31/05/07

Keywords

Crack bridging
Finite element analysis
Grain boundaries
Microstructure
Stress corrosion cracking

Cite this

@inproceedings{dd5fdafc7afc42bf89c7e2468787cddf,

title = "Modelling intergranular stress corrosion cracking in simulated three-dimensional microstructures",

abstract = "Microstructure can have a significant effect on the resistance to intergranular stress corrosion cracking. Certain grain boundaries are susceptible to corrosion while others have high resistance and may form crack bridging ligaments as the crack deviates around them. To investigate the mechanics of crack bridging, 3D computational model has been previously developed. An extension to the model, to include stress corrosion crack growth kinetics is presented in this paper. An analysis of the effects of resistant grain boundary fraction demonstrates that the bridging ligaments can significantly retard short crack propagation rates. Increasing the fraction of resistant boundaries is shown to improve microstructure resistance by reducing the crack propagation rate.",

keywords = "Crack bridging, Finite element analysis, Grain boundaries, Microstructure, Stress corrosion cracking",

author = "Jivkov, {A. P.} and Stevens, {N. P C} and Marrow, {T James}",

year = "2007",

language = "English",

volume = "345-346",

series = "Mechanical Behavior of Materials X, Pts 1and 2",

publisher = "Trans Tech Publications Ltd",

pages = "1019--1022",

booktitle = "Key Engineering Materials|Key Eng Mat",

address = "Switzerland",

note = "10th International Conference on Mechanical Behaviour of Materials ; Conference date: 27-05-2007 Through 31-05-2007",

}

Jivkov, AP , Stevens, NPC & Marrow, TJ 2007, Modelling intergranular stress corrosion cracking in simulated three-dimensional microstructures. in Key Engineering Materials|Key Eng Mat. vol. 345-346, Mechanical Behavior of Materials X, Pts 1and 2, Trans Tech Publications Ltd, LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND, pp. 1019-1022, 10th International Conference on Mechanical Behaviour of Materials, Busan, Korea, 27/05/07.

Modelling intergranular stress corrosion cracking in simulated three-dimensional microstructures. / Jivkov, A. P.; Stevens, N. P C; Marrow, T James.
Key Engineering Materials|Key Eng Mat. Vol. 345-346 LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND: Trans Tech Publications Ltd, 2007. p. 1019-1022 (Mechanical Behavior of Materials X, Pts 1and 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Modelling intergranular stress corrosion cracking in simulated three-dimensional microstructures

AU - Jivkov, A. P.

AU - Stevens, N. P C

AU - Marrow, T James

PY - 2007

Y1 - 2007

N2 - Microstructure can have a significant effect on the resistance to intergranular stress corrosion cracking. Certain grain boundaries are susceptible to corrosion while others have high resistance and may form crack bridging ligaments as the crack deviates around them. To investigate the mechanics of crack bridging, 3D computational model has been previously developed. An extension to the model, to include stress corrosion crack growth kinetics is presented in this paper. An analysis of the effects of resistant grain boundary fraction demonstrates that the bridging ligaments can significantly retard short crack propagation rates. Increasing the fraction of resistant boundaries is shown to improve microstructure resistance by reducing the crack propagation rate.

AB - Microstructure can have a significant effect on the resistance to intergranular stress corrosion cracking. Certain grain boundaries are susceptible to corrosion while others have high resistance and may form crack bridging ligaments as the crack deviates around them. To investigate the mechanics of crack bridging, 3D computational model has been previously developed. An extension to the model, to include stress corrosion crack growth kinetics is presented in this paper. An analysis of the effects of resistant grain boundary fraction demonstrates that the bridging ligaments can significantly retard short crack propagation rates. Increasing the fraction of resistant boundaries is shown to improve microstructure resistance by reducing the crack propagation rate.

KW - Crack bridging

KW - Finite element analysis

KW - Grain boundaries

KW - Microstructure

KW - Stress corrosion cracking

M3 - Conference contribution

VL - 345-346

T3 - Mechanical Behavior of Materials X, Pts 1and 2

SP - 1019

EP - 1022

BT - Key Engineering Materials|Key Eng Mat

PB - Trans Tech Publications Ltd

CY - LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND

T2 - 10th International Conference on Mechanical Behaviour of Materials

Y2 - 27 May 2007 through 31 May 2007

ER -

Modelling intergranular stress corrosion cracking in simulated three-dimensional microstructures

Abstract

Publication series

Conference

Keywords

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