Results 1 to 10 of about 1,645 (179)

Review of Radiation Embrittlement of Aluminum Alloys Used in Research Reactors. [PDF]

Materials (Basel)
Research reactors are generally built from aluminum alloys during the last century. Most of the operation times of them already exceed the design lifetime. The original mechanical properties change during service. The radiation embrittlement affects them through three mechanisms: the transmutation of aluminum to silicon caused by thermal neutrons ...
Gillemot F, Kolluri M, Szenthe I, Naziris F, Berzy L.   +4 more
europepmc   +4 more sources

Direct Observation of Cu Clusters and Dislocation Loops by Cs-Corrected STEM in Fe-0.6wt%Cu Alloy Irradiated in BR2

Metals, 2022
The neutron irradiation of Fe-based fusion and fission reactor materials leads to an increase in ductile-to-brittle transition temperature with a decrease in upper shelf energy. It is well known that Cu content has a strong influence on the embrittlement
Hideo Watanabe, Tomonari Tanaka, Takuya Turu, Yasuhiro Kamada   +3 more
doaj   +1 more source

Review on Steel Enhancement for Nuclear RPVs

Metals, 2021
The reactor pressure vessel (RPV) is one of the most important elements of a nuclear power plant (NPP). The RPV determines the plant operational lifetime since it is not replaceable economically.
Ferenc Gillemot
doaj   +1 more source

Influence analysis of alloy elements on irradiation embrittlement of RPV steel based on deep neural network

International Journal of Advanced Nuclear Reactor Design and Technology, 2023
Reactor pressure vessel (RPV) is the most important core equipment in PWR. Its service life determines the service life of nuclear power plant and directly affects the economy and safety of nuclear power plant. Because RPV is serviced at high temperature,
Bai Bing, Xu Han, Lixia Jia, Xinfu He, Changyi Zhang, Wen Yang   +5 more
doaj   +1 more source

Conducting local cutout from the surface of the VVER-1000 reactor vessel

Trudy Odesskogo Politehničeskogo Universiteta, 2019
Integrity of the reactor pressure vessel is a critical element in demonstrating the capability of nuclear power plant for operation to at least 80 years.
Олексій Геннадійович Руденко, Віктор Миколайович Воєводін, Сергій Васильович Гоженко, Павло Олександрович Міщенко   +3 more
doaj   +5 more sources

On the Limitations of Positron Annihilation Spectroscopy in the Investigation of Ion-Implanted FeCr Samples

Metals, 2021
New materials for advanced fission/fusion nuclear facilities must inevitably demonstrate resistance to radiation embrittlement. Thermal and radiation ageing accompanied by stress corrosion cracking are dominant effects that limit the operational ...
Vladimir Slugen, Jarmila Degmova, Stanislav Sojak, Martin Petriska, Pavol Noga, Vladimir Krsjak   +5 more
doaj   +1 more source

To the issue of accuracy of determination of irradiation embrittlement coefficient [PDF]

Ядерна фізика та енергетика, 2020
The paper presents the statistical analysis of experimental results of radiation-induced critical brittle temperature ΔTF shifts and reference temperatures ΔT0 obtained respectively from the impact bend and fracture toughness tests of the reactor vessel ...
L. I. Chyrko, V. M. Revka, Yu. V. Chaikovskyi, M. G. Goliak, O. V. Trygubenko, O. V. Shkapyak   +5 more
doaj   +1 more source

Comparison of applicability of current transition temperature shift models to SA533B-1 reactor pressure vessel steel of Korean nuclear reactors

Nuclear Engineering and Technology, 2017
The precise prediction of radiation embrittlement of aged reactor pressure vessels (RPVs) is a prerequisite for the long-term operation of nuclear power plants beyond their original design life.
Ji-Hyun Yoon, Bong-Sang Lee
doaj   +1 more source

Effects of Structural Radiation Disorder in the Near-Surface Layer of Alloys Based on NbTiVZr Compounds Depending on the Variation of Alloy Components

Crystals, 2023
This research investigated how changes in the composition of Nb–Ti–V–Zr-based alloys affect their resistance to radiation damage and the preservation of strength characteristics when exposed to the heavy ions Kr15+ and Xe23+.
Sholpan G. Giniyatova, Kayrat K. Kadyrzhanov, Dmitriy I. Shlimas, Daryn B. Borgekov, Vladimir V. Uglov, Artem L. Kozlovskiy, Maxim V. Zdorovets   +6 more
doaj   +1 more source

Research progress on the characterization of irradiation damage defects and performance control of titanium alloy

Journal of Aeronautical Materials, 2022
Under the high-energy particle impingement and cascade effect, different types of radiation damage defects occur in metals. The aggregation and evolution of radiation damage defects can lead to the destruction of the internal structural stability and the
YE Yongqiang, HAN Yuanfei, ZHAO Min, HUANG Guangfa, LYU Weijie   +4 more
doaj   +1 more source