A mechanism for hydrogen-induced intergranular stress corrosion cracking in alloy 600

1990 ◽  
Vol 21 (5) ◽  
pp. 1261-1271 ◽  
Author(s):  
Chih Hao Shen ◽  
Paul G. Shewmon
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Alloy 600 ◽  
Intergranular Stress Corrosion ◽  
Intergranular Stress Corrosion Cracking

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.

scholarly journals Study on the Mechanism of Intergranular Stress Corrosion Cracking of Alloy 600 in High Temperature Alkaline Solution

1999 ◽  
Vol 48 (4) ◽  
pp. 226-234
Author(s):  
Hirotaka Kawamura ◽  
Hideo Hirano ◽  
Hiroshi Takamatsu ◽  
Tomoya Matsunaga ◽  
Shunsuke Shirai ◽  
...  
Keyword(s):  
High Temperature ◽  
Stress Corrosion ◽  
Alkaline Solution ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Alloy 600 ◽  
Intergranular Stress Corrosion ◽  
Intergranular Stress Corrosion Cracking

Effects of Carbides on Susceptibility of Alloy 600 to Stress Corrosion Cracking in High-Temperature Water

CORROSION ◽  
1993 ◽  
Vol 49 (11) ◽  
pp. 867-876 ◽  
Author(s):  
R. B. Rebak ◽  
Z. Xia ◽  
Z. Szklarska-Smialowska
Keyword(s):  
High Temperature ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Alloy 600 ◽  
Intergranular Stress Corrosion ◽  
High Temperature Water ◽  
Dilute Aqueous Solutions ◽  
Intergranular Stress Corrosion Cracking ◽  
Temperature Water

Abstract The electrochemical behavior of sensitized, carburized, and mill-annealed alloy 600 (UNS N06600) was studied in hydrogenated, aerated, and high-temperature (250°C to 350°C) dilute aqueous solutions. In high-temperature water at high anodic potentials, the current density (CD) from carbide dissolution was higher than CD from matrix dissolution. In oxidizing environments, intergranular stress corrosion cracking propagated in alloy 600 by dissolution of continuous or semicontinuous carbides at the grain boundary, in sensitized and non-sensitized materials.

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