scholarly journals The Probability Distribution of Intergranular Stress Corrosion Cracking Life for Sensitized 304 Stainless Steels in High Temperature, High Purity Water

1984 ◽  
Vol 33 (11) ◽  
pp. 628-634 ◽  
Author(s):  
Masatsune Akashi ◽  
Takao Kenjyo ◽  
Shinji Matsukura ◽  
Teruaki Kawamoto
CORROSION ◽  
1968 ◽  
Vol 24 (10) ◽  
pp. 319-325 ◽  
Author(s):  
J. S. ARMIJO

Abstract A bellows arrangement for controlled high temperature, high pressure, stress corrosion tests of thick specimens has been used to study the intergranular stress corrosion cracking of Type 304 stainless steel and Incoloy 800 in oxygenated (~ 100 ppm) 550 F (288 C) water. Complete intergranular fracture of sensitized Type 304 stainless steels occurs after 10.4 ± 4.4 hours exposure at stress levels of 14,000 to 17,000 psi. Cracking of Incoloy 800 requires longer exposures at higher stress. Crevices are not necessary to initiate cracking of sensitized alloys.


CORROSION ◽  
1986 ◽  
Vol 42 (2) ◽  
pp. 99-105 ◽  
Author(s):  
Y. S. Garud ◽  
A. R. McIlree

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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