COMPARISONS BETWEEN DROP WEIGHT AND CRACK ARREST TESTS FOR THE ESTIMATION OF THE BRITTLE FRACTURE TRANSITION TEMPERATURE OF STEEL

Journal Article · Wed May 01 00:00:00 EDT 1963 · Welding J. (N.Y.)

OSTI ID:4693363

Fearnehough, G D; Vaughan, H G

A comparison between nil ductility temperature (NDT) and crack arrest data from many tests on thick low-carbon pressure vessel steels shows that the (NDT + 60 un. Concent 85% F) value is similar to, but somewhat more optimistic than, the Robertson isothermal crack arrest criterion. The NDT value shows slightly worse correlation with the isothermal temperature (95% confidence estimate 450 deg C in a 25 un. Concent 85% C) than does the Charpy 25% fibrosity temperature ( 450 deg C in a 20 un. Concent 85% C). For the steels examined, NDT showed reasonable correlation with the Charpy 25% criterion but poorer correlation with the 35 ft-lb temperature. (auth)

• Research Organization: United Kingdom Atomic Energy Authority, Culcheth, Eng.
• NSA Number: NSA-17-022203
• OSTI ID: 4693363
• Journal Information: Welding J. (N.Y.), Journal Name: Welding J. (N.Y.) Vol. Vol: 42
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BRITTLENESS
CARBON STEELS
CRACKS
FAILURES
MECHANICAL PROPERTIES
METALS, CERAMICS, AND OTHER MATERIALS
PRESSURE VESSELS
TEMPERATURE
TESTING
WEIGHT