The fatigue-crack growth and ductile fracture toughness behavior of ASTM A387 grade 91 steel

Journal Article · Thu Aug 01 00:00:00 EDT 1985 · J. Pressure Vessel Technol.; (United States)

DOI:https://doi.org/10.1115/1.3264449· OSTI ID:6122349

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/sup 0/C. The effects of heat-to-heat variations, crack orientation, and thermal aging were studied. In addition, stress ratio effects were characterized at 427/sup 0/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.

• Research Organization: Westinghouse Hanford Company, Richland, WA
• OSTI ID: 6122349
• Journal Information: J. Pressure Vessel Technol.; (United States), Vol. 107:3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
20 FOSSIL-FUELED POWER PLANTS
PRESSURE VESSELS
CRACK PROPAGATION
FABRICATION
FATIGUE
FRACTURE PROPERTIES
TEMPERATURE EFFECTS
STEEL-ASTM-A387
DUCTILITY
DYNAMIC LOADS
HIGH TEMPERATURE
MEDIUM TEMPERATURE
STRESS ANALYSIS
STRESS INTENSITY FACTORS
TEMPERATURE GRADIENTS
THERMAL DEGRADATION
WELDED JOINTS
ALLOYS
CONTAINERS
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MECHANICAL PROPERTIES
STEELS
TENSILE PROPERTIES
360103* - Metals & Alloys- Mechanical Properties
200104 - Fossil-Fueled Power Plants- Components