TY - JOUR
T1 - Effect of bonding and bakeout thermal cycles on the properties of copper alloys irradiated at 350 degrees C
AU - Singh, B.N.
AU - Edwards, D.J.
AU - Eldrup, Morten Mostgaard
AU - Toft, P.
PY - 2001/5
Y1 - 2001/5
N2 - Screening experiments were carried out to determine the effect of bonding and bakeout thermal cycles on microstructure, mechanical properties and electrical resistivity of the oxide dispersion strengthened (GlidCop, CuAl-25) and the precipitation hardened (CuCrZr, CuNiBe) copper alloys. Tensile specimens were given heat treatments corresponding to solution anneal, prime-aging, bonding thermal treatment followed by re-aging and the reactor bakeout treatment. A number of specimens were irradiated at 350 degreesC to a dose level of similar or equal to0.3 dpa in the DR-3 reactor at Riso. Both unirradiated and irradiated specimens were tensile tested at 350 degreesC. The microstructure and electrical resistivity were determined in the unirradiated and irradiated conditions. The post-deformation microstructure and fracture surfaces of unirradiated and irradiated specimens were examined. The main results are described and their salient features discussed. The most significant effect of neutron irradiation is a severe loss of ductility in the case of CuNiBe alloys. (C) 2001 Elsevier Science B.V. All rights reserved.
AB - Screening experiments were carried out to determine the effect of bonding and bakeout thermal cycles on microstructure, mechanical properties and electrical resistivity of the oxide dispersion strengthened (GlidCop, CuAl-25) and the precipitation hardened (CuCrZr, CuNiBe) copper alloys. Tensile specimens were given heat treatments corresponding to solution anneal, prime-aging, bonding thermal treatment followed by re-aging and the reactor bakeout treatment. A number of specimens were irradiated at 350 degreesC to a dose level of similar or equal to0.3 dpa in the DR-3 reactor at Riso. Both unirradiated and irradiated specimens were tensile tested at 350 degreesC. The microstructure and electrical resistivity were determined in the unirradiated and irradiated conditions. The post-deformation microstructure and fracture surfaces of unirradiated and irradiated specimens were examined. The main results are described and their salient features discussed. The most significant effect of neutron irradiation is a severe loss of ductility in the case of CuNiBe alloys. (C) 2001 Elsevier Science B.V. All rights reserved.
KW - Industrielle materialer
U2 - 10.1016/S0022-3115(01)00507-4
DO - 10.1016/S0022-3115(01)00507-4
M3 - Journal article
SN - 0022-3115
VL - 295
SP - 1
EP - 15
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1
ER -