Corrosion fatigue of iron-chromium-nickel alloys: Fracture mechanics and chemistry

Technical Report · Thu Nov 29 00:00:00 EST 1990

DOI:https://doi.org/10.2172/6671629· OSTI ID:6671629

Wei, R P

Peak bare-surface current densities based on the scratched electrode test are seriously in error and repasivation rates grossly overestimated. Influences of potential and pH on reactions of bare surfaces are better understood. Correlation between charge transfer and corrosion fatigue crack growth response was established for Fe18Cr12Ni alloy in deaerated 0.6N NaCl at RT. Strong correlation was established between morphology of corrosion fatigue fracture surfaces and cracking in hydrogen charged samples. Attempts at growing bicrystals by strain annealing were not successful.

• Research Organization: Lehigh Univ., Bethlehem, PA (United States). Dept. of Mechanical Engineering and Mechanics
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-88ER45354
• OSTI ID: 6671629
• Report Number(s): DOE/ER/45354-3; ON: DE93012235
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM ALLOYS
CORROSION FATIGUE
IRON ALLOYS
NICKEL ALLOYS
AQUEOUS SOLUTIONS
BICRYSTALS
CRACK PROPAGATION
CRYSTAL GROWTH
ELECTROCHEMISTRY
HYDROGEN EMBRITTLEMENT
PROGRESS REPORT
SODIUM CHLORIDES
STEELS
SURFACES
ALKALI METAL COMPOUNDS
ALLOYS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
CRYSTALS
DISPERSIONS
DOCUMENT TYPES
EMBRITTLEMENT
FATIGUE
HALIDES
HALOGEN COMPOUNDS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
MIXTURES
POLYCRYSTALS
SODIUM COMPOUNDS
SOLUTIONS
360105* - Metals & Alloys- Corrosion & Erosion
360103 - Metals & Alloys- Mechanical Properties