Biaxial thermal creep of two heats of V4Cr4Ti at 700 and 800°C in a liquid lithium environment

Environmental effects on irradiation creep behavior of highly purified V–4Cr–4Ti alloys (NIFS-Heats) irradiated by neutrons

“…Coldworked V-4Cr-4Ti alloys had a larger irradiation creep strain than annealed ones. In previous studies of thermal creep in V-4Cr-4Ti alloys, the creep strain rate of cold-worked V-4Cr-4Ti alloys was much smaller than that of annealed V-4Cr-4Ti alloys in the temperature range 700-800°C [6][7][8][9][10]. The tendency of the behavior of irradiation creep deformation in V-4Cr-4Ti alloys was different from that of thermal creep deformation at the point of deformation processing.…”

“…Dimensional changes of the PCTs were measured at ORNL with a Z-mike precision laser profilometer. Detailed additional information about the laser profilometry is given elsewhere [8]. Fig.…”

Irradiation creep of the US Heat 832665 of V–4Cr–4Ti

“…Fig. 2 summarizes thermal creep data in both vacuum and lithium environments on V-4Cr-4Ti reported in the literature [13,15,16,2,[17][18][19][20][21][22][23]. The creep data can be described by a powerlaw dislocation creep equation:…”

“…The mid-wall effective creep strain of a pressurized creep tube was determined by assuming that the material is incompressible and the deformation caused only by uniform plastic flow. The mid-wall von Mises effective stress of a pressurized creep tube was calculated using the analytical solution of stress state for a thick-walled pressured cylinder [13].…”

Development of advanced blanket performance under irradiation and system integration through JUPITER-II project

“…Bulk specimens of Er 2 O 3 , Y 2 O 3 and AlN irradiated at 450 • C in Li environment in HFIR-RB-17J were examined and no signification corrosion was observed. [17][18][19] Performance of V-alloy components in Li and irradiation environments up to 3-5 dpa at 450 and 600 • C was clarified as follows.…”