Fatigue-crack growth and ductile fracture toughness behavior of ASTM A387 Grade 91 steel

Conference · Sun Jul 01 04:00:00 EDT 1984

OSTI ID:5625965

James, L A; Carlson, K W

Fatigue-crack growth tests were conducted on three heats of wrought material plus one heat of weldment at temperatures of 24, 316, 427, 538, and 593 C. The effects of heat-to-heat variations, crack orientation, and thermal aging were studied. In addition, stress ratio effects were characterized at 427 C. The J-integral technique was used to determine the ductile fracture toughness at room temperature. Both the multiple specimen and unloading compliance techniques were used, and differences between the two methods are discussed. 30 refs., 15 figs., 5 tabs.

• Research Organization: Hanford Engineering Development Lab., Richland, WA (USA); Westinghouse Electric Corp., Sunnyvale, CA (USA)
• DOE Contract Number: AC06-76FF02170
• OSTI ID: 5625965
• Report Number(s): HEDL-SA-3180-FP; CONF-850670-8; ON: DE85008495
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
CHARPY TEST
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CRACK PROPAGATION
CRACKS
DATA
DESTRUCTIVE TESTING
EXPERIMENTAL DATA
FRACTURE MECHANICS
FRACTURE PROPERTIES
HARDNESS
HIGH TEMPERATURE
IMPACT TESTS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
MECHANICS
MEDIUM TEMPERATURE
NUMERICAL DATA
STEEL-ASTM-A387
STEELS
STRESS INTENSITY FACTORS
TEMPERATURE EFFECTS
TESTING
YIELD STRENGTH