Alloy evaluation for fossil fuel process plants (liquefaction). Quarterly report, January 1-March 31, 1980

Technical Report · Thu May 01 04:00:00 EDT 1980

DOI:https://doi.org/10.2172/5432506· OSTI ID:5432506

Woods, C M; Scott, T E

A potential drop vs. crack growth calibration curve for dynamically loaded compact tension specimens of A387-74A-Gr.22-Cl.2 steel was established. Fatigue crack growth rates (da/dN) were determined for a wide variation of stress intensity range values (..delta..K). Testing was done in moist air (approx. 30% RH) at ambient temperature and pressure. Near-threshold to rapid crack growth stages were examined. Corrosion specimens of A387-74A-Gr.22-Cl.2 steel were exposed to a coal slurry environment at 800/sup 0/F, 4000 psig total pressure for 24, 48, 72 and 240 hours. Corrosion scale growth rates and micrographs of the scale region are presented.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5432506
• Report Number(s): IS-4742
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CORROSION RESISTANCE
CRACKS
FATIGUE
GROWTH
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
STEEL-ASTM-A387
STEELS