TY - BOOK
T1 - Post Irradiation Mechanical Behaviour of Three EUROFER Joints
AU - Lucon, Enrico
AU - Leenaers, Ann
AU - Vandermeulen, Willy
A2 - Scibetta, Marc
N1 - RN - BLG-1029
AI - EFDA Long Term Programme Task TW5-TTMS-001
Deliverable D05
Score = 2
PY - 2006/8/22
Y1 - 2006/8/22
N2 - The post-irradiation mechanical properties of three EUROFER joints (two diffusion joints and one TIG weld) have been characterized after irradiation to 1.8 dpa at 300 °C in the BR2 reactor. Tensile, KLST impact and fracture toughness tests have been performed.
Based on the results obtained and on the comparison with data from EUROFER base material irradiated under similar conditions, the post-irradiation mechanical behaviour of both diffusion joints ("laboratory" and "mock-up") appears similar to that of the base material.
The properties of the TIG joint are affected by the lack of a post-weld heat treatment, which causes the material from the upper part of the weld to be significantly worse than that of the lower region. Thus, specimens from the upper layer exhibit extremely pronounced hardening and embrittlement caused by irradiation. The samples extracted from the lower layer show much better resistance to neutron exposure, although their measured properties do not match those of the diffusion joints.
The results presented demonstrate that diffusion joining can be a very promising technique.
AB - The post-irradiation mechanical properties of three EUROFER joints (two diffusion joints and one TIG weld) have been characterized after irradiation to 1.8 dpa at 300 °C in the BR2 reactor. Tensile, KLST impact and fracture toughness tests have been performed.
Based on the results obtained and on the comparison with data from EUROFER base material irradiated under similar conditions, the post-irradiation mechanical behaviour of both diffusion joints ("laboratory" and "mock-up") appears similar to that of the base material.
The properties of the TIG joint are affected by the lack of a post-weld heat treatment, which causes the material from the upper part of the weld to be significantly worse than that of the lower region. Thus, specimens from the upper layer exhibit extremely pronounced hardening and embrittlement caused by irradiation. The samples extracted from the lower layer show much better resistance to neutron exposure, although their measured properties do not match those of the diffusion joints.
The results presented demonstrate that diffusion joining can be a very promising technique.
KW - EUROFER
KW - diffusion joints
KW - TIG joint
KW - post-irradiation behaviour
KW - post-weld heat treatment
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_32186
UR - http://knowledgecentre.sckcen.be/so2/bibref/3662
M3 - BLG - Open report
VL - 1
T3 - SCK•CEN Reports
BT - Post Irradiation Mechanical Behaviour of Three EUROFER Joints
PB - SCK CEN
ER -