Effects of Potential and Stress on Stress Corrosion Cracking of Austenitic Stainless Steels in Concentrated Chloride Solutions

X. C. Jiang; R. W. Staehle

doi:10.5006/1.3290296

Effects of Potential and Stress on Stress Corrosion Cracking of Austenitic Stainless Steels in Concentrated Chloride Solutions

X. C. Jiang, R. W. Staehle

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Abstract

The chemical-mechanical correlation model for stress corrosion cracking (SCC) was used to analyize the effect of electrode potential (E) on SCC of austenitic stainless steels (SS) in concentrated chloride solutions. The analysis produced a value of the mechanical constant (Q_c/m = 20.6 kJ/mol) which was the same as that obtained at open-circuit potentials (OCP). Analysis also revealed that the effect of E on SCC mainly affected the environmental factor (β) of the model. A theory developed about the physical meaning of β was able to predict the dependence of β on E in concentrated chloride solutions, based upon repassivation properties.

Original language	English (US)
Pages (from-to)	631-643
Number of pages	13
Journal	Corrosion (Houston)
Volume	53
Issue number	8
DOIs	https://doi.org/10.5006/1.3290296
State	Published - Aug 1997
Externally published	Yes

Keywords

Austenitic stainless steel
Chemical-mechanical correlation model
Chloride
Correlation equation
Modeling
Potential
Repassivation
Stress
Stress corrosion cracking

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title = "Effects of Potential and Stress on Stress Corrosion Cracking of Austenitic Stainless Steels in Concentrated Chloride Solutions",

abstract = "The chemical-mechanical correlation model for stress corrosion cracking (SCC) was used to analyize the effect of electrode potential (E) on SCC of austenitic stainless steels (SS) in concentrated chloride solutions. The analysis produced a value of the mechanical constant (Qc/m = 20.6 kJ/mol) which was the same as that obtained at open-circuit potentials (OCP). Analysis also revealed that the effect of E on SCC mainly affected the environmental factor (β) of the model. A theory developed about the physical meaning of β was able to predict the dependence of β on E in concentrated chloride solutions, based upon repassivation properties.",

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year = "1997",

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journal = "Corrosion (Houston)",

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AU - Jiang, X. C.

AU - Staehle, R. W.

PY - 1997/8

Y1 - 1997/8

N2 - The chemical-mechanical correlation model for stress corrosion cracking (SCC) was used to analyize the effect of electrode potential (E) on SCC of austenitic stainless steels (SS) in concentrated chloride solutions. The analysis produced a value of the mechanical constant (Qc/m = 20.6 kJ/mol) which was the same as that obtained at open-circuit potentials (OCP). Analysis also revealed that the effect of E on SCC mainly affected the environmental factor (β) of the model. A theory developed about the physical meaning of β was able to predict the dependence of β on E in concentrated chloride solutions, based upon repassivation properties.

AB - The chemical-mechanical correlation model for stress corrosion cracking (SCC) was used to analyize the effect of electrode potential (E) on SCC of austenitic stainless steels (SS) in concentrated chloride solutions. The analysis produced a value of the mechanical constant (Qc/m = 20.6 kJ/mol) which was the same as that obtained at open-circuit potentials (OCP). Analysis also revealed that the effect of E on SCC mainly affected the environmental factor (β) of the model. A theory developed about the physical meaning of β was able to predict the dependence of β on E in concentrated chloride solutions, based upon repassivation properties.

KW - Austenitic stainless steel

KW - Chemical-mechanical correlation model

KW - Chloride

KW - Correlation equation

KW - Modeling

KW - Potential

KW - Repassivation

KW - Stress

KW - Stress corrosion cracking

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Effects of Potential and Stress on Stress Corrosion Cracking of Austenitic Stainless Steels in Concentrated Chloride Solutions

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