Recent improvements in size effects correlations for DBTT and upper shelf energy of ferritic steels

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:10147806

Kumar, A S; Louden, B S ^[1]; Garner, F A; Hamilton, M L ^[2]

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1. Missouri Univ., Rolla, MO (United States)
2. Pacific Northwest Lab., Richland, WA (United States)

Currently available correlations for the effects of specimen size on the USE were developed for relatively ductile steels and will not serve as well when the steels become embrittled. Size effects correlations were developed recently for the impact properties of less ductile HT9 to be applied to other initially more ductile steels as they lose their ductility during irradiation. These new correlations successfully predict the ductile brittle transition temperature (DBTT) and the upper shelf energy (USE) of full size Charpy specimens based on subsize specimen data. The new DBTT and the USE correlations were tested against published experimental data on other ferritic steels and shown to perform successfully at lower USE particularly when both precracked and notched only specimens were employed.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 10147806
• Report Number(s): PNL-SA--19683; CONF-920146--3; ON: DE92014703
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200
42 ENGINEERING
420500
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700480
CHARPY TEST
COMPONENT DEVELOPMENT
COMPONENTS AND ACCESSORIES
DAMAGING NEUTRON FLUENCE
DUCTILE-BRITTLE TRANSITIONS
EMBRITTLEMENT
FERRITIC STEELS
MATERIALS STUDIES
MATERIALS TESTING
MODIFICATIONS
PHYSICAL RADIATION EFFECTS
PRESSURE VESSELS
THERMONUCLEAR REACTOR MATERIALS
TRANSITION TEMPERATURE