scholarly journals Effects of Temperature and Anion-species on the Susceptibility to Chloride Stress Corrosion Cracking of Stainless Steels in Hot Water

2013 ◽  
Vol 62 (6) ◽  
pp. 224-230
Author(s):  
Tomoaki Saida ◽  
Katsuaki Sato ◽  
Kensuke Kuroda ◽  
Masazumi Okido
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Stainless Steels ◽  
Corrosion Cracking ◽  
Hot Water ◽  
Effects Of Temperature ◽  
Chloride Stress Corrosion Cracking ◽  
Anion Species

Chloride Stress Corrosion Cracking of Austenitic Stainless Steel—Effect of Temperature and pH★

CORROSION ◽  
1958 ◽  
Vol 14 (12) ◽  
pp. 60-64 ◽  
Author(s):  
L. R. SCHARFSTEIN ◽  
W. F. BRINDLEY
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Stainless Steels ◽  
Chloride Ions ◽  
Corrosion Cracking ◽  
Effect Of Temperature ◽  
Type 304 ◽  
Chloride Stress Corrosion Cracking

Abstract Overstressed U-bends of Types 304 and 347 stainless steels were exposed to water containing chloride ions to determine the susceptibility of these steels to stress corrosion cracking between the temperatures of 165 F and 200 F. The pH was controlled at 6.5 to 7.5 and 10.6 to 11.2 for the tests. At the high pH, cracks appeared at the edges with little evidence of pitting. At the neutral pH, cracks were found at the edges and associated with pits. Sensitized Type 304 had longer and deeper cracks than annealed Types 304 and 347 in the same exposure time. Conclusion is made that chloride stress corrosion cracking of these steels in the temperature range of 165 F to 200 F is less severe than that experienced at 500 F and that specific conditions are required for corrosion cracking to occur at all. 3.2.2

Using Radioactive Tracers to Study Chloride Stress Corrosion Cracking of Stainless Steels

CORROSION ◽  
1966 ◽  
Vol 22 (2) ◽  
pp. 48-52 ◽  
Author(s):  
R. F. OVERMAN
Keyword(s):  
Stainless Steel ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Stainless Steels ◽  
Radioactive Tracer ◽  
Corrosion Cracking ◽  
Radioactive Tracers ◽  
Surface Cracks ◽  
High Concentration ◽  
Chloride Stress Corrosion Cracking

Abstract A combination of radioactive tracer and metallurgical techniques has made it possible to study some of the conditions necessary to produce chloride stress corrosion cracks in stainless steel The existence of charged areas on the surface of steel was demonstrated by autoradiography of samples exposed to solutions containing radioactive tracers. Charged areas on the surface may be created by a high concentration of small sulfide inclusions; the cracks that appeared were initiated within these charged areas. Seven nanograms of chloride on one charged area was sufficient to start corrosion and subsequent surface cracks in a surface of steel stressed by grinding.

Use of Fundamental Modeling of Environmental Cracking for Improved Design and Lifetime Evaluation

1993 ◽  
Vol 115 (4) ◽  
pp. 353-358 ◽  
Author(s):  
P. L. Andresen ◽  
F. P. Ford
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Stainless Steels ◽  
Nickel Alloys ◽  
Life Prediction ◽  
Corrosion Cracking ◽  
Hot Water ◽  
Crack Advance ◽  
Evaluation Codes ◽  
Improved Design

This manuscript reviews an approach for improved design and lifetime evaluation for environmental cracking based on fundamental modeling of the underlying, operative processes in crack advance. In outlining this approach and its application in energy industries, the requirements for a life prediction methodology will be highlighted and the shortcomings of the existing design and lifetime evaluation codes will be discussed. Examples will be given of its development and application in a variety of cracking systems, such as environmental cracking of stainless steels and nickel alloys in hot water, and irradiation-assisted stress corrosion cracking.

Sign in / Sign up

Export Citation Format

Share Document