Swelling and tensile properties of neutron-irradiated vanadium alloys

Conference · Sun Jul 01 00:00:00 EDT 1990

OSTI ID:6133847

Loomis, B A; Smith, D L

Vanadium-base alloys are candidates for use as structural material in magnetic fusion reactors. In comparison to other candidate structural materials (e.g., Type 316 stainless and HT-9 ferritic steels), vanadium-base alloys such as V-15Cr-5Ti and V-20Ti have intrinsically lower long-term neutron activation, neutron irradiation after-heat, biological hazard potential, and neutron-induced helium and hydrogen transmutation rates. Moreover, vanadium-base alloys can withstand a higher surface-heat, flux than steels because of their lower thermal stress factor. In addition to having these favorable neutronic and physical properties, a candidate alloy for use as structural material in a fusion reactor must have dimensional stability, i.e., swelling resistance, and resistance to embrittlement during the reactor lifetime at a level of structural strength commensurate with the reactor operating temperature and structural loads. In this paper, we present experimental results on the swelling and tensile properties of several vanadium-base alloys after irradiation at 420, 520, and 600{degree}C to neutron fluences ranging from 0.3 to 1.9 {times} 10{sup 27} neutrons/m{sup 2} (17 to 114 atom displacements per atom (dpa)).

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6133847
• Report Number(s): CONF-9009264-4; ON: DE91006588; TRN: 91-001932
• Resource Relation: Conference: Conference on the effect of irradiation on materials of fusion reactors, Leningrad (USSR), 18-20 Sep 1990
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
36 MATERIALS SCIENCE
THERMONUCLEAR REACTOR MATERIALS
PHYSICAL RADIATION EFFECTS
VANADIUM BASE ALLOYS
DAMAGING NEUTRON FLUENCE
SWELLING
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
YIELD STRENGTH
ALLOYS
MATERIALS
MECHANICAL PROPERTIES
NEUTRON FLUENCE
RADIATION EFFECTS
VANADIUM ALLOYS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing
360106 - Metals & Alloys- Radiation Effects
360103 - Metals & Alloys- Mechanical Properties