Effect of irradiation temperature and strain rate on the mechanical properties of V-4Cr-4Ti irradiated to low doses in fission reactors

Technical Report · Tue Sep 01 00:00:00 EDT 1998

DOI:https://doi.org/10.2172/330609· OSTI ID:330609

Zinkle, S. J.; Snead, L. L.; Rowcliffe, A. F.; Alexander, D. J.; Gibson, L. T. ^[1]

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1. Oak Ridge National Lab., TN (United States)

Tensile tests performed on irradiated V-(3-6%)Cr-(3-6%)Ti alloys indicate that pronounced hardening and loss of strain hardening capacity occurs for doses of 0.1--20 dpa at irradiation temperatures below {approximately}330 C. The amount of radiation hardening decreases rapidly for irradiation temperatures above 400 C, with a concomitant increase in strain hardening capacity. Low-dose (0.1--0.5 dpa) irradiation shifts the dynamic strain aging regime to higher temperatures and lower strain rates compared to unirradiated specimens. Very low fracture toughness values were observed in miniature disk compact specimens irradiated at 200--320 C to {approximately}1.5--15 dpa and tested at 200 C.

• Research Organization: Oak Ridge National Lab., TN (United States)
• OSTI ID: 330609
• Report Number(s): DOE/ER--0313/24; ON: DE98007433
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHROMIUM ALLOYS
EXPERIMENTAL DATA
FRACTURE PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION DOSES
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
THERMONUCLEAR REACTOR MATERIALS
TITANIUM ALLOYS
VANADIUM BASE ALLOYS