Research progress on preparation technology of oxide dispersion strengthened steel for nuclear energy

Abstract

Nuclear energy is a low-carbon, safe, efficient, and sustainable clean energy. The new generation of nuclear energy systems operate in harsher environments under higher working temperatures and irradiation doses, while traditional nuclear power materials cannot meet the requirements. The development of high-performance nuclear power materials is a key factor for promoting the development of nuclear energy. Oxide dispersion strengthened (ODS) steel contains a high number density of dispersed nano-oxides and defect sinks and exhibits excellent high temperature creep performance and irradiation swelling resistance. Therefore, ODS steel has been considered as one of the most promising candidate materials for fourth-generation nuclear fission reactor cladding tubes and nuclear fusion reactor blankets. The preparation process significantly influences microstructure of ODS steel. This paper reviews the development and perspective of several preparation processes of ODS steel, including the powder metallurgy process, improved powder metallurgy process, liquid metal forming process, hybrid process, and additive forging. This paper also summarizes and analyzes the relationship between microstructures and the preparation process. After comprehensive consideration, the powder metallurgy process is still the best preparation process for ODS steel. Combining the advantages and disadvantages of the above preparation processes, the trend applied additive forging for extreme manufacturing of large ODS steel components is discussed with the goal of providing a reference for the application and development of ODS steel in nuclear energy.

Aspects of Applied Chemistry Related to Future Goals of Safety and Efficiency in Materials Development for Nuclear Energy

“…Nowadays, increased energy demand and the necessity of controlling worldwide CO 2 emissions have made the option of energy production from nuclear reactions by fission and/or fusion very attractive [ 31 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 ]. As a consequence of the development in the field of energy production by fission reactions, Generation IV nuclear reactors became a real international challenge as a safe, innovative, durable, and economical method for energy production.…”

Research of Injection Methods for Y2o3 Nanoparticles Into Nickel- Free Stainless Steel During Induction Vacuum Remelting

“…The main disadvantage of this method is the complexity and rarity of equipment that can conduct additive laser melting, and as a consequence, questionable economic and technological efficiency, a significant limitation on the size of the finished steel. ODS steel made by SLM method has a low density, and the average size of nanooxides and dispersity is not as good as that of mechanical alloying [16].…”

Carbothermal reduction assisted by hydrogenation treatment for preparing single-phase CeC2 nanoscale powders

“…Uranium (U) and plutonium (Pu) are commonly used metal elements in the field of nuclear engineering. Ceramic nuclear fuels, including oxides [1], carbides [2], nitrides [3], and silicides [4] have excellent nuclear combustion properties, and are considered as ideal candidates for nuclear fuels [1][2][3][4]. However, U and Pu are radioactive, which can cause human damage and environmental hazards.…”