Localized corrosion and stress corrosion cracking behavior of austenitic stainless steel weldments containing retained ferrite. Annual progress report, June 1, 1978--March 31, 1979

Technical Report · Thu Mar 01 00:00:00 EST 1979

DOI:https://doi.org/10.2172/6390328· OSTI ID:6390328

Savage, W. F.; Duquette, D. J.

Localized corrosion and stress corrosion cracking experiments have been performed on single phase 304 stainless steel alloys and autogeneous weldments containing retained delta ferrite as a second phase. The results of the pitting experiments show that the pressure of delta ferrite decreases localized corrosion resistance with pits initiating preferentially at delta ferrite--gamma austenite interphase boundaries. This increased susceptibility is reversible with elevated temperature heat treatments which revert the metastable ferrite phase to the equilibrium austenite phase.

• Research Organization: Rensselaer Polytechnic Inst., Troy, NY (USA). Dept. of Materials Engineering
• DOE Contract Number: EY-76-S-02-2462
• OSTI ID: 6390328
• Report Number(s): COO-2462-5; TRN: 79-017010
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
STAINLESS STEEL-304L
STRESS CORROSION
SURFACE TREATMENTS
ALLOYS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION
CORROSION RESISTANT ALLOYS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
NICKEL ALLOYS
STAINLESS STEELS
STEELS
360105* - Metals & Alloys- Corrosion & Erosion