Irradiation creep of the US Heat 832665 of V-4Cr-4Ti

Journal Article · Thu Apr 30 04:00:00 EDT 2009 · Journal of Nuclear Materials, 386:618-621

DOI:https://doi.org/10.1016/j.jnucmat.2008.12.220· OSTI ID:965556

Li, Meimei; Hoelzer, D T; Grossbeck, Martin L; Rowcliffe, A F; Zinkle, Steven J; Kurtz, Richard J

The paper presents irradiation creep data for V-4Cr-4Ti irradiated to 3.7 dpa at 425 and 600 _C in the HFIR-17J experiment. Creep deformation was characterized by measuring diametral changes of pressur-ized creep tubes before and after irradiation. It was found that the creep strain rate of the US Heat 832665 of V-4Cr-4Ti exhibited a linear relationship with stress up to _180 MPa at 425 _C with a creep coefficient of 2.50 _10_6 MPa_1 dpa_1. A linear relationship between creep rate and applied stress was observed below _110 MPa at 600 _C with a creep coefficient of 5.41 _10_6 MPa_1 dpa_1; non-linear creep behavior was observed above _110 MPa, and it may not be fully accounted by invoking thermal creep. The bilinear creep behavior observed in the same alloy irradiated in BR-10 was not observed in this study.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 965556
• Report Number(s): PNNL-SA-67149; AT6020100
• Journal Information: Journal of Nuclear Materials, 386:618-621, Journal Name: Journal of Nuclear Materials, 386:618-621 Vol. 386; ISSN 0022-3115; ISSN JNUMAM
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
36 MATERIALS SCIENCE
CHROMIUM ALLOYS
CREEP
HFIR REACTOR
IRRADIATION
REACTOR MATERIALS
STRAIN RATE
TITANIUM ALLOYS
VANADIUM BASE ALLOYS