Effect of proton irradiation on tensile properties and microhardness of Cu and a Cu-Cr-Zr alloy
- 1. Commission of the European Communities, Ispra (Italy). Joint Research Centre
Description
In order to simulate the effects of 14 MeV neutron damage in materials to be used in the divertor of a Tokamak Fusion Reactor, irradiation was undertaken using 18 MeV protons produced by a cyclotron. The materials investigated were Oxygen Free High Conductivity Cu and a Cu-Cr-Zr alloy from which thin miniaturized specimens were produced for tensile testing and microhardness measurements. Testing of unirradiated material demonstrated that at specimen thicknesses below 0.5 mm the primary effect of decreasing the thickness further was that of lowering the ductility, whilst the yield stress and ultimate tensile strength remained unchanged. Irradiation was carried out at 2950C up to a damage level of 0.21 dpa. Post-irradiation testing showed that for annealed OFHC Cu a softening had occurred. For the Cu-Cr-Zr alloy it was found that the strength decreased during irradiation, the fall being approximately 50% at 0.19 dpa
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Additional details
Publishing Information
- Imprint Pagination
- 29 p.
- Report number
- EUR--11501
INIS
- Country of Publication
- European Commission (EC), Brussels (Belgium)
- Country of Input or Organization
- European Commission (EC), Brussels (Belgium)
- INIS RN
- 20005436
- Subject category
- S36: MATERIALS SCIENCE; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- ANNEALING; CHROMIUM ADDITIONS; COPPER; COPPER BASE ALLOYS; DIVERTORS; DUCTILITY; MICROHARDNESS; PHYSICAL RADIATION EFFECTS; ULTIMATE STRENGTH; YIELD STRENGTH; ZIRCONIUM ADDITIONS
- Descriptors DEC
- ALLOYS; COPPER ALLOYS; ELEMENTS; HARDNESS; HEAT TREATMENTS; MECHANICAL PROPERTIES; METALS; RADIATION EFFECTS; TENSILE PROPERTIES; TRANSITION ELEMENTS