Corrosion, stress corrosion cracking, and electrochemistry of the iron and nickel base alloys in caustic environments. Progress report, 1 March 1977--28 February 1978

Technical Report · Sun Jan 01 00:00:00 EST 1978

DOI:https://doi.org/10.2172/5281724· OSTI ID:5281724

Staehle, R. W.; Agrawal, A. K.

The straining electrode technique was used to evaluate the stress corrosion cracking (SCC) susceptibility of AISI 304 stainless steel in 20N NaOH solution, and of Inconel 600 Alloy and Incoloy 800 Alloy in boiling 17.5N NaOH solution. The crack propagation rate estimated from the straining experiments correlated well with the previous constant load experiments. It was found that the straining electrode technique is a useful method for estimating, through short term experiments, parameters like crack propagation rate, crack morphology, and repassivation rate, as a function of the electrode potential. The role of alloying elements on the crack propagation rate in the above alloys are also discussed.

• Research Organization: Ohio State Univ., Columbus (USA). Dept. of Metallurgical Engineering
• DOE Contract Number: EY-76-S-02-2421
• OSTI ID: 5281724
• Report Number(s): COO-2421-4
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SODIUM HYDROXIDES
CORROSIVE EFFECTS
STAINLESS STEEL-304
STRESS CORROSION
CRACKS
INCONEL 600
INCONEL ALLOYS
ALKALI METAL COMPOUNDS
ALLOYS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION
CORROSION RESISTANT ALLOYS
HEAT RESISTING ALLOYS
HYDROGEN COMPOUNDS
HYDROXIDES
IRON ALLOYS
IRON BASE ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
OXYGEN COMPOUNDS
SODIUM COMPOUNDS
STAINLESS STEELS
STEELS
360105* - Metals & Alloys- Corrosion & Erosion