Post-irradiation annealing behavior of microstructure and hardening of a reactor pressure vessel steel studied by positron annihilation and atom probe tomography

2012 ◽  
Vol 425 (1-3) ◽  
pp. 65-70 ◽  
Author(s):  
A. Kuramoto ◽  
T. Toyama ◽  
T. Takeuchi ◽  
Y. Nagai ◽  
M. Hasegawa ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Pressure Vessel ◽  
Atom Probe Tomography ◽  
Atom Probe ◽  
Pressure Vessel Steel ◽  
Vessel Steel ◽  
Annealing Behavior ◽  
Post Irradiation ◽  
Reactor Pressure Vessel Steel ◽  
Reactor Pressure

Atom Probe Tomography characterization of the microstructural evolution of a low copper reactor pressure vessel steel under neutron irradiation

2010 ◽  
Vol 1264 ◽  
Author(s):  
Hefei Huang ◽  
Bertrand Radiguet ◽  
Patrick Todeschini ◽  
Guillaume Chas ◽  
Philippe Pareige
Keyword(s):  
Neutron Irradiation ◽  
Pressure Vessel ◽  
Atom Probe Tomography ◽  
Atom Probe ◽  
Reactor Pressure Vessel ◽  
Surveillance Program ◽  
Pressure Vessel Steel ◽  
Vessel Steel ◽  
Reactor Pressure Vessel Steel ◽  
Reactor Pressure

AbstractA low copper reactor pressure vessel steel was characterised by atom probe tomography after neutron irradiation at different fluences. The specimens were irradiated within the frame of the Surveillance Program of a production reactor. Roughly spherical clusters enriched in nickel, manganese, silicon and, in a lesser extent, phosphorus and copper were observed at all fluences. The chemical composition of these clusters shows no evolution with fluence, as well as their diameter, close to 3 nm. Their number density increases linearly with the neutron fluence. A continuous segregation of the elements found in the clusters is also observed along dislocation lines, with similar enrichments.

scholarly journals Diffusivity and Solubility of Cu in a Reactor Pressure Vessel Steel Studied by Atom Probe Tomography

2015 ◽  
Vol 56 (9) ◽  
pp. 1513-1516 ◽  
Author(s):  
Masaki Shimodaira ◽  
Takeshi Toyama ◽  
Fumihiko Takahama ◽  
Naoki Ebisawa ◽  
Yasuko Nozawa ◽  
...  
Keyword(s):  
Pressure Vessel ◽  
Atom Probe Tomography ◽  
Atom Probe ◽  
Reactor Pressure Vessel ◽  
Pressure Vessel Steel ◽  
Vessel Steel ◽  
Reactor Pressure Vessel Steel ◽  
Reactor Pressure

scholarly journals Diffusivity and Solubility of Cu in a Reactor Pressure Vessel Steel Studied by Atom Probe Tomography

2014 ◽  
Vol 55 (9) ◽  
pp. 1460-1463
Author(s):  
Masaki Shimodaira ◽  
Takeshi Toyama ◽  
Fumihiko Takahama ◽  
Naoki Ebisawa ◽  
Yasuko Nozawa ◽  
...  
Keyword(s):  
Pressure Vessel ◽  
Atom Probe Tomography ◽  
Atom Probe ◽  
Reactor Pressure Vessel ◽  
Pressure Vessel Steel ◽  
Vessel Steel ◽  
Reactor Pressure Vessel Steel ◽  
Reactor Pressure

Influence of the Irradiation Temperature on the Formation of Defects in Reactor Pressure Vessel Steels

1996 ◽  
Vol 439 ◽  
Author(s):  
M. Große ◽  
A. Hempel ◽  
J. Böhmert ◽  
G. Brauer ◽  
F. M. Haggag
Keyword(s):  
Pressure Vessel ◽  
Irradiation Temperature ◽  
Reactor Pressure Vessel ◽  
Pressure Vessel Steel ◽  
Vessel Steel ◽  
Post Irradiation ◽  
Cu Content ◽  
Reactor Pressure Vessel Steel ◽  
Pressure Vessel Steels ◽  
Reactor Pressure

AbstractTwo heats of reactor pressure vessel steel type A533-B-1 differing in their Cu content (0.07 and 0.14 wt.-%) were irradiated to a fluence of 1* 1018 neutrons/cm2 at temperatures of 60, 121, and 288 °C, respectively. Their microstructure has been studied by SANS, SAXS, and PAS in the asirradiated and post-irradiation annealed stages and compared to the behaviour of unirradiated material and the results are discussed.

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