Grain boundary structure and intergranular stress corrosion crack initiation in high temperature water of a thermally sensitised austenitic stainless steel, observed in situ

Alisa Stratulat; Jonathan A. Duff; T. James Marrow

doi:10.1016/j.corsci.2014.04.050

Grain boundary structure and intergranular stress corrosion crack initiation in high temperature water of a thermally sensitised austenitic stainless steel, observed in situ

Alisa Stratulat, Jonathan A. Duff, T. James Marrow^*

^*Corresponding author for this work

Oxford University

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

Abstract

The development of an intergranular stress corrosion crack initiation site in thermally sensitised type 304 austenitic stainless steel has been observed in situ in high temperature oxygenated water using digital image correlation of time-resolved optical observations. The grain boundary normal stresses were calculated using the Schmid-Modified Grain Boundary Stress (SMGBS) model of Was et al., applying three-dimensional data for the grain boundary planes and grain orientations. The initiation site coincided with the most highly stressed sensitised boundary, demonstrating the importance of the combined contributions to crack initiation of grain boundary structure and plastic strain incompatibility.

Original language	English
Pages (from-to)	428-435
Number of pages	8
Journal	Corrosion Science
Volume	85
DOIs	https://doi.org/10.1016/j.corsci.2014.04.050
Publication status	Published - Aug 2014

Keywords

A. Stainless steel
C. Intergranular corrosion
C. Stress corrosion

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title = "Grain boundary structure and intergranular stress corrosion crack initiation in high temperature water of a thermally sensitised austenitic stainless steel, observed in situ",

abstract = "The development of an intergranular stress corrosion crack initiation site in thermally sensitised type 304 austenitic stainless steel has been observed in situ in high temperature oxygenated water using digital image correlation of time-resolved optical observations. The grain boundary normal stresses were calculated using the Schmid-Modified Grain Boundary Stress (SMGBS) model of Was et al., applying three-dimensional data for the grain boundary planes and grain orientations. The initiation site coincided with the most highly stressed sensitised boundary, demonstrating the importance of the combined contributions to crack initiation of grain boundary structure and plastic strain incompatibility.",

keywords = "A. Stainless steel, C. Intergranular corrosion, C. Stress corrosion",

author = "Alisa Stratulat and Duff, {Jonathan A.} and Marrow, {T. James}",

year = "2014",

month = aug,

doi = "10.1016/j.corsci.2014.04.050",

language = "English",

volume = "85",

pages = "428--435",

journal = "Corrosion Science ",

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T1 - Grain boundary structure and intergranular stress corrosion crack initiation in high temperature water of a thermally sensitised austenitic stainless steel, observed in situ

AU - Stratulat, Alisa

AU - Duff, Jonathan A.

AU - Marrow, T. James

PY - 2014/8

Y1 - 2014/8

N2 - The development of an intergranular stress corrosion crack initiation site in thermally sensitised type 304 austenitic stainless steel has been observed in situ in high temperature oxygenated water using digital image correlation of time-resolved optical observations. The grain boundary normal stresses were calculated using the Schmid-Modified Grain Boundary Stress (SMGBS) model of Was et al., applying three-dimensional data for the grain boundary planes and grain orientations. The initiation site coincided with the most highly stressed sensitised boundary, demonstrating the importance of the combined contributions to crack initiation of grain boundary structure and plastic strain incompatibility.

AB - The development of an intergranular stress corrosion crack initiation site in thermally sensitised type 304 austenitic stainless steel has been observed in situ in high temperature oxygenated water using digital image correlation of time-resolved optical observations. The grain boundary normal stresses were calculated using the Schmid-Modified Grain Boundary Stress (SMGBS) model of Was et al., applying three-dimensional data for the grain boundary planes and grain orientations. The initiation site coincided with the most highly stressed sensitised boundary, demonstrating the importance of the combined contributions to crack initiation of grain boundary structure and plastic strain incompatibility.

KW - A. Stainless steel

KW - C. Intergranular corrosion

KW - C. Stress corrosion

UR - http://www.scopus.com/inward/record.url?scp=84901624082&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2014.04.050

DO - 10.1016/j.corsci.2014.04.050

M3 - Article

AN - SCOPUS:84901624082

SN - 0010-938X

VL - 85

SP - 428

EP - 435

JO - Corrosion Science

JF - Corrosion Science

ER -

Grain boundary structure and intergranular stress corrosion crack initiation in high temperature water of a thermally sensitised austenitic stainless steel, observed in situ

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Keywords

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