A Caustic Stress-Corrosion Cracking Evaluation of Thermally Treated Inconel Alloy 600 Steam Generator Tubing

2009 ◽  
pp. 59-59-20
Author(s):  
GP Airey ◽  
AR Vaia
Keyword(s):  
Stress Corrosion ◽  
Steam Generator ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Alloy 600 ◽  
Inconel Alloy ◽  
Steam Generator Tubing ◽  
Thermally Treated

The Effect of Thermal Treatments on Stress Corrosion Cracking of Alloy-800 in a Caustic Environment

CORROSION ◽  
1985 ◽  
Vol 41 (10) ◽  
pp. 575-581 ◽  
Author(s):  
R. S. Pathania ◽  
R. D. Cleland
Keyword(s):  
Stress Corrosion ◽  
Steam Generator ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Caustic Solution ◽  
Thermal Treatments ◽  
Steam Generators ◽  
Alloy 800 ◽  
Steam Generator Tubing ◽  
Alkaline Environments

Abstract Stress corrosion cracking (SCC) tests under controlled potentials were conducted on plastically stressed C-rings of Alloy-800 to evaluate the effect of thermal treatments (at 500 to 850 C) on SCC of Alloy-800 steam generator tubing. The tests were conducted in a caustic solution at 300 C; such alkaline environments may sometimes form in crevices in nuclear steam generators. The results are presented in the form of a time-temperature-SCC diagram. Thermal treatments generally inhibited the SCC of Alloy-800, and the improvement was substantial in a few cases. Application of anodic potential and increasing stress generally accelerated SCC.

Stress Corrosion Cracking of Steam Generator Tube Materials in Sodium Hydroxide Solutions

CORROSION ◽  
1978 ◽  
Vol 34 (11) ◽  
pp. 369-378 ◽  
Author(s):  
R. S. PATHANIA ◽  
J. A. CHITTY
Keyword(s):  
Stress Corrosion ◽  
Sodium Hydroxide ◽  
Applied Stress ◽  
Steam Generator ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Sodium Hydroxide Concentration ◽  
Inconel 600 ◽  
Steam Generator Tubing ◽  
Monel 400

Abstract Stress corrosion cracking (SCC) tests were carried out on specimens of Monel 400, Inconel 600, and Sanicro 30 steam generator tubing in solutions containing 10 to 500 g NaOH/kg H2O at 300 C for times up to 600 days. Applied stress and sodium hydroxide concentration had a significant effect on the (SCC) resistance of the three materials.

scholarly journals Laboratorial technique for fabrication of outer diameter stress corrosion cracking on steam generator tubing

2014 ◽  
Vol 13 (3) ◽  
pp. 112-119
Author(s):  
Jae-Min Lee ◽  
Sung-Woo Kim ◽  
Seong-Sik Hwang ◽  
Hong-Pyo Kim ◽  
Hong-Deok Kim
Keyword(s):  
Stress Corrosion ◽  
Steam Generator ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Outer Diameter ◽  
Steam Generator Tubing

scholarly journals Stress Corrosion Cracking of Alloy 600 Using the Constant Strain Rate Test

CORROSION ◽  
1981 ◽  
Vol 37 (10) ◽  
pp. 597-607 ◽  
Author(s):  
T. S. Bulischeck ◽  
D. Van Rooyen
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Constant Strain Rate ◽  
Corrosion Cracking ◽  
Extension Rate ◽  
Alloy 600 ◽  
Steam Generator Tubing ◽  
Rate Test ◽  
Initial Results ◽  
Production Tubing

Abstract Nuclear grade production tubing of Alloy 600 was evaluated for stress corrosion cracking (SCC) susceptibility in high purity water at 365, 345, 325, and 290 C. Reverse tube U-bend specimens provided crack initiation data and constant extension rate tests were employed to determine the crack velocities experienced in the crack propagation stage. Initial results indicate that a linear extrapolation of data received from high temperature tests can be used to predict the service life of steam generator tubing that has been plastically deformed or is continually deforming by “denting.”

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