Formation of voids and secondary-phase precipitates in the Fe-16Cr-15Ni-2Mo-1Mn-Ti-Si steel under high-doze neutron irradiation and during post-irradiation annealing

2009 ◽  
Vol 54 (7) ◽  
pp. 1139-1145 ◽  
Author(s):  
I. A. Portnykh ◽  
A. V. Kozlov ◽  
E. N. Shcherbakov ◽  
O. I. Asiptsov
Keyword(s):  
Neutron Irradiation ◽  
Secondary Phase ◽  
Post Irradiation

scholarly journals Effects of neutron irradiation and post-irradiation annealing on the microstructure of HT-UPS stainless steel

2018 ◽  
Vol 507 ◽  
pp. 188-197 ◽  
Author(s):  
Chi Xu ◽  
Wei-Ying Chen ◽  
Xuan Zhang ◽  
Yaqiao Wu ◽  
Meimei Li ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Neutron Irradiation ◽  
Post Irradiation

Evolution of the nanostructure of VVER-1000 RPV materials under neutron irradiation and post irradiation annealing

2009 ◽  
Vol 385 (3) ◽  
pp. 615-622 ◽  
Author(s):  
M.K. Miller ◽  
A.A. Chernobaeva ◽  
Y.I. Shtrombakh ◽  
K.F. Russell ◽  
R.K. Nanstad ◽  
...  
Keyword(s):  
Neutron Irradiation ◽  
Post Irradiation

A study of neutron irradiation damage in α-iron with magnetoacoustic and Barkhausen emission

1987 ◽  
Vol 414 (1846) ◽  
pp. 221-236 ◽  
Keyword(s):  
Neutron Irradiation ◽  
Neutron Radiation ◽  
Irradiation Damage ◽  
Post Irradiation ◽  
Recovery Processes ◽  
New Information ◽  
Before And After ◽  
Radiation Induced ◽  
Examination Methods ◽  
Cold Worked

Magnetoacoustic emission (MAE) and Barkhausen emission (BE) in α-iron are sensitive to the presence of precipitates and of dislocations. These techniques have been used to examine radiation damage and post-irradiation recovery processes in α-iron containing low levels of interstitial impurities in the annealed and cold-worked conditions, both before and after neutron irradiation at 60 °C to 2.9 × 10 19 n cm -2 (greater than 1 MeV). Irradiation leads to the suppression of domain wall pinning in annealed material, as indicated by reductions in low-field BE and MAE activities. Furthermore, cold-worked irradiated α-iron exhibits reduced thermal stability during post-irradiation annealing in the temperature range 250-550 °C, compared with the unirradiated annealing response. The results are interpreted in terms of radiation-induced dissolution of α"-Fe 16 N 2 and γ'-Fe 4 N nitrides, solute-point defect trapping/dissociation, and enhanced dislocation recovery processes. The studies demonstrate that BE and MAE measurements can pro­vide new information to complement more conventional examination methods for characterization of low-dose irradiation effects in α-iron. The techniques show promise for non-destructive examination of ferrous materials in neutron-radiation environments.

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