Nuclear energy plays a vital role in achieving carbon peaking and carbon neutrality goals. However, the Fukushima-Daiichi nuclear accident in 2011 has posed a significant challenge for researchers to develop new strategies to ensure the safety and lifetime of nuclear reactors through applying advanced materials with stable physical and chemical
2023/7/6/ · Corrosion can hurt the quality and service life of a workpiece, which could create potential safety hazards. However, improving the workpiece’s surface integrity through surface treatment could improve the effect of corrosion resistance. To study the effect of surface integrity on the corrosion resistance of low-alloy steel for hydrogen
2023/1/1/ · The selection of corrosion-resistant alloys is an important step that is directly affected by the long life system. Therefore, making any mistakes in choosing the materials leads to some issues for the system [5], [13]. Companies with high research facilities first simulate a certain part of the field environment under study. Then a group of
2022/5/5/ · Molten salt reactors (MSR) are Generation-IV fission reactors. MSR is a class of nuclear fission reactors in which the coolant is a mixture of molten salts. In fact, pure nickel like Ni-201 is highly corrosion resistant in molten FLiNaK salt but becomes brittle at high temperature and cannot be used as a structural material for components ...
2009/11/1/ · Supercritical water reactors (SCWRs) are a kind of high-temperature, high-pressure water-cooled reactors that operate above the thermodynamic critical point of water (374 °C, 22.1 MPa). Corrosion
2020/10/10/ · Reactor composting had the highest material degradation at 35.7%. • Nitrogen loss in reactor composting was 34% less compared with windrow
2012/1/1/ · 3.1. Introduction. In nuclear power plants, most of the corrosion problems occur in the water coolant systems. some of these problems are associated directly or indirectly with the radiation from the reactor core, so that the corrosion of in-core components, such as fuel and its accessories or flow-channels, is influenced by the
Hot Corrosion and Protection of Structural Materials in Molten Salt Reactor. As one of the Gen-IV (Generation Four Initiative) alternative reactors, molten salt reactor (MSR) has become a popular research topic again in recent years. Molten fluorides act as the nuclear fuel carrier and coolant in MSR. However, its highly corrosive to structural
2009/11/1/ · Abstract. Supercritical water reactors (SCWRs) are a kind of high-temperature, high-pressure water-cooled reactors that operate above the thermodynamic critical point of water (374 °C, 22.1 MPa). Corrosion and degradation of materials used in supercritical water environments are determined by several environment- and material
2019/5/1/ · CANDU-X reactor utilizes heavy water as moderator and light water as coolant with the thermal efficiency as high as 48%. The designed inlet temperature is 350 °C and the outlet temperature is 625 °C. However, at 650 °C, though 1# steel still has high strength, the yield ratio is 0.94. What is more, the corrosion resistance of 1# steel is ...
2022/8/1/ · Each sample was weighted 3 times to obtain the average weight. The corrosion rate (r) representing the corrosion resistance of SiC was calculated by the equation below: (1) r = m − m 0 2 (LW + LH + WH) ∙ t where m 0 and m are the weight of samples before and after corrosion, t is the corrosion time, L, W, H are the length, width
2020/9/20/ · And they are developing corrosion-resistant replacement materials to keep nuclear reactors operating safely and reliably for 60 years or longer. “The US nuclear fleet is getting up there in
2024/5/3/ · The synergistic damage effect of irradiation and corrosion of reactor structural materials has been a prominent research focus. This paper provides a comprehensive review of the synergistic effects on the third- and fourth-generation fission nuclear energy structural materials used in pressurized water reactors and molten salt
2021/4/26/ · Working closely with his advisor Koroush Shirvan, John Clark Hardwick (1986) Career Development Professor, Seshadri has forged a singular path identifying and testing a new generation of radiation-, corrosion-, and heat-resistant materials and fuels that can better withstand the extreme conditions in nuclear reactors.
2024/3/21/ · The one with the highest content of corrosion-resistant elements such as nickel will be the best choice. Inside a nuclear reactor, that alloy should respond to a bombardment of radiation not by corroding more rapidly but by forming a protective layer that helps block the corrosion process.