Analysis of WWER-440 and PWR RPV welds surveillance data to compare irradiation damage evolution

Debarberis, L.; Acosta, B.; Zeman, A.; Filippo, Sevini; Ballesteros, A.; Kryukov, A.; Gillemot, F.; Brumovsky, Milan

doi:10.1016/j.jnucmat.2006.01.003

Cited by 12 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under irradiation, the growth of copper precipitates is enhanced which causes the increase of the friction stress in RPVS. Since copper precipitates represent strong obstacles to dislocation motion, the irradiation induces hardening of RPVS, and consequently a rise of the ductile to brittle transition temperature [2][3][4][5][6][7][8][9][10][11]. A similar hardening effects are observed in the case of thermal aging experiments of super-saturated Cu-Fe model alloys [6].…”

Section: Introductionmentioning

confidence: 71%

Tensile properties and internal friction study of dislocation movement in iron–copper system as a function of copper precipitation

Konstantinović

Almazouzi

Scibetta

et al. 2007

Journal of Nuclear Materials

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 71%

Tensile properties and internal friction study of dislocation movement in iron–copper system as a function of copper precipitation

Konstantinović

Almazouzi

Scibetta

et al. 2007

Journal of Nuclear Materials

View full text Add to dashboard Cite

“…Neutron irradiation will cause irradiation brittleness, accompanied by a decrease in ductility, which may induce brittle failure of RPV, causing catastrophic consequences. The main form of brittle failure is cleavage fracture [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effect of Neutron Irradiation on the Critical Event Size of Cleavage Fracture of the Chinese A508-3 Steel

Yang

Pan

Wang

et al. 2022

MSF

View full text Add to dashboard Cite

In order to analyze the influence of neutron irradiation on the critical event of cleavage fracture for the Chinese A508-3 (RPV) steel, the fracture morphology, microstructure and grain size of the irradiated specimens are observed and analyzed by optical microscope (OM) and scanning electron microscope (SEM). The results show that with the increase of neutron doses, the fracture mode of Chinese RPV steel material changes gradually from ductile fracture to ductile-brittle mixed fracture transformation. The brittle part for fracture mode of ductile-brittle fracture is cleavage fracture, and the non-metallic inclusions, microstructure and grain size grades are not significantly different from those of the specimens without cleavage fracture. In the same material, with increasing of neutron doses, the critical event size of the cleavage fracture will be reduced, and the percentage of the grain that satisfies the grain size of the cleavage critical event will increase correspondingly, resulting in an increase of the probability of cleavage fracture of the material. The fine grain with uniform distribution can improve partly the fracture toughness of the material and withstand higher neutron doses under the same conditions.

show abstract

Evidence for chromium stabilisation of irradiation damage in RPV weld metals

Debarberis¹,

Hein²

2006

International Journal of Pressure Vessels and Piping

View full text Add to dashboard Cite

Analysis of WWER-440 and PWR RPV welds surveillance data to compare irradiation damage evolution

Cited by 12 publications

References 15 publications

Tensile properties and internal friction study of dislocation movement in iron–copper system as a function of copper precipitation

Tensile properties and internal friction study of dislocation movement in iron–copper system as a function of copper precipitation

Effect of Neutron Irradiation on the Critical Event Size of Cleavage Fracture of the Chinese A508-3 Steel

Evidence for chromium stabilisation of irradiation damage in RPV weld metals

Contact Info

Product

Resources

About