Results 21 to 30 of about 308 (200)

The Effect of Operational Factors on Phase Formation Patterns in the Light-Water Reactor Pressure Vessel Steels

open access: yesMetals, 2023
This paper presents the results of atom probe tomography studies on radiation-induced phase formation in light-water reactor pressure vessel steels after neutron irradiation under various conditions in comparison with the literature data.
Svetlana Fedotova, Evgenia Kuleshova
doaj   +1 more source

Numerical investigation on stress corrosion cracking behavior of dissimilar weld joints in pressurized water reactor plants [PDF]

open access: yesFracture and Structural Integrity, 2014
There have been incidents recently where stress corrosion cracking (SCC) observed in the dissimilar metal weld (DMW) joints connecting the reactor pressure vessel (RPV) nozzle with the hot leg pipe.
Lingyan Zhao   +3 more
doaj   +2 more sources

The Role of Water Chemistry for Environmentally Assisted Cracking in Low-Alloy Reactor Pressure Vessel and Piping Steels under Boiling Water Reactor Conditions

open access: yesCHIMIA, 2005
The environmentally assisted initiation and propagation of cracks in structural materials is one of the most important degradation and ageing mechanisms in light water reactors (LWR) and may seriously affect plant availability and economics.
Hans-Peter Seifert, Stefan Ritter
doaj   +1 more source

Using Mini-CT Specimens for the Fracture Characterization of Ferritic Steels within the Ductile to Brittle Transition Range: A Review

open access: yesMetals, 2023
The use of mini-CT specimens for the fracture characterization of structural steels is currently a topic of great interest from both scientific and technical points of view, mainly driven by the needs and requirements of the nuclear industry.
Marcos Sánchez   +5 more
doaj   +1 more source

Effect of Neutron Fluence Rate on Irradiation Embrittlement of Low-copper RPV Steel

open access: yesYuanzineng kexue jishu
The reactor pressure vessels (RPVs) of pressurized water reactor (PWR) nuclear power plants currently in operation and under construction in China are all made of low-alloy ferritic steels obtained by quenching and tempering treatments (which meet the ...
WU Yazhen, LI Guoyun, WANG Haidong, HUANG Juan, ZHANG Haisheng, SUN Kai, LEI Yang, ZHU Lini
doaj   +1 more source

HPC atomic simulations of defect formation and kinetic Monte Carlo simulation of material ageing [PDF]

open access: yesEPJ Web of Conferences
Kinetic Monte Carlo (KMC) simulations are developed to simulate microstructure evolution under irradiation of structural materials of nuclear power plants. Methods based on rigid lattice atomic KMC and object KMC, despite some approximations, present the
Domain Christophe   +6 more
doaj   +1 more source

Effects of neutron irradiation on magnetic first-order reversal curves in reactor pressure vessel steels

open access: yesAIP Advances, 2020
We report results of measurements of first-order reversal curves (FORCs) for neutron irradiated reactor pressure vessel steels to seek their possible application to a nondestructive evaluation of the irradiation hardening.
Satoru Kobayashi   +5 more
doaj   +1 more source

Impact of Chloride on the Environmentally-Assisted Crack Initiation Behaviour of Low-Alloy Steel under Boiling Water Reactor Conditions

open access: yesCorrosion and Materials Degradation, 2022
Low-alloy reactor pressure vessel steels have a rather low susceptibility to stress corrosion cracking (SCC) in a boiling water reactor (BWR) environment if the high-temperature water contains no anionic impurities.
Stefan Ritter, Hans-Peter Seifert
doaj   +1 more source

Mechanically Robust and Depolymerizable Polyesters With Near‐Complete Monomer Recovery for Circular Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
A sustainable δ‐lactone‐based polymer platform enables multimodal additive manufacturing through DLP, DIW, and FFF, combining tunable crystallinity, photocurable networks, mechanical robustness, and functional response. The printed materials can be mechanically reprocessed and chemically depolymerized into recoverable monomers, demonstrating a closed ...
Farzad Gholami   +2 more
wiley   +1 more source

Analysis of Shift in Nil-Ductility Transition Reference Temperature for RPV Steels Due to Irradiation Embrittlement Using Probability Distributions and Gamma Process

open access: yesMetals
Reactor pressure vessel (RPV) steels are highly susceptible to irradiation embrittlement due to prolonged exposure to high temperature, high pressure, and intense neutron irradiation.
Kaikai Tang   +4 more
doaj   +1 more source

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