Effect of Temperature, Concentration of Medium and Potential on Intergranular Stress Corrosion Cracking of Mild Steel in NaNO3 Solution

1991 ◽  
Vol 20-28 ◽  
pp. 1853-1862
Author(s):  
Ke Qing Zhao
Keyword(s):  
Mild Steel ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Effect Of Temperature ◽  
Intergranular Stress Corrosion ◽  
Intergranular Stress Corrosion Cracking

Effect of Temperature on the Stress Corrosion Cracking of Tempered Type 403 Martensitic Stainless Steel in Sodium Sulfate Solution

CORROSION ◽  
1982 ◽  
Vol 38 (12) ◽  
pp. 604-608 ◽  
Author(s):  
B. Bavarian ◽  
Z. Szklarska-Smialowska ◽  
D. D. Macdonald
Keyword(s):  
Stainless Steel ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Sulfate Solution ◽  
Corrosion Cracking ◽  
Effect Of Temperature ◽  
Intergranular Stress Corrosion ◽  
Nucleation Sites ◽  
Corrosion Pits ◽  
Intergranular Stress Corrosion Cracking

Abstract Tempered martensitic Type 403 stainless steel has been found to suffer pitting corrosion and intergranular stress corrosion cracking in 0.01 M Na2SO4 at temperatures of 75 and 100 C, but not at the lower temperatures of 25 and 50 C. Significant sulfur (sulfate) contamination of the passive film from solution was found, but the level of contamination could not be correlated with the susceptibility of the alloy to IGSCC. Nonmetallic inclusions (MnS) and carbide precipitates were found to act as nucleation sites for corrosion pits which in turn give rise to IGSCC.

Intergranular Stress Corrosion Cracking Damage Model: An Approach and Its Development for Alloy 600 in High-Purity Water

CORROSION ◽  
1986 ◽  
Vol 42 (2) ◽  
pp. 99-105 ◽  
Author(s):  
Y. S. Garud ◽  
A. R. McIlree
Keyword(s):  
Strain Rate ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
High Purity ◽  
Corrosion Cracking ◽  
Model Parameters ◽  
Alloy 600 ◽  
Intergranular Stress Corrosion ◽  
Film Rupture ◽  
Intergranular Stress Corrosion Cracking

Abstract A logical approach to quantitative modeling of intergranular stress corrosion cracking (IGSCC) is presented. The approach is based on the supposition (supported partly by experimental and field observations, and by a related plausible underlying mechanism) that strain rate is a key variable. The approach is illustrated for the specific case of NiCrFe Alloy 600 in high-purity water. Model parameters are determined based on the constant stress IGSCC data (between 290 and 365 C) assuming a power law relation between the damage and the nominal strain rate. The model may be interpreted in terms of a film rupture mechanism of the corrosion process. The related mechanistic considerations are examined for the specific case. Resulting calculations and stress as well as temperature dependence are shown to be in good agreement with the data. More data are needed for further verification under specific conditions of interest.

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