Refueling System for Fast Reactors: Creation and Development

Dushev, S. A.; Тимофеев, А. В.; Lyubimov, Maxim; Belinskii, D. L.

doi:10.1007/s10512-021-00715-w

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Then, some spent fuel assemblies would be unloaded from the core, and new fuel assemblies would be loaded in the core. The refueling system has been specifically designed for fuel assembly loading and unloading in a sodium-cooled fast reactor [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Aging Behavior of Nitrided W18Cr4V Steel in High-Temperature Sodium

Fu,

Liang,

Zhang

et al. 2024

Metals

View full text Add to dashboard Cite

The loading and unloading elevators are the primary equipment in the refueling system, used for transferring fuel assemblies in the sodium-cooled fast reactors. The guideway friction pairs are the critical components of these elevators in the refueling system. With the excellent hardness and wear resistance in air, nitrided W18Cr4V steel is a promising material for the guideway friction pairs. In order to assess the feasibility of using nitrided W18Cr4V steel, it is essential to understand the aging behavior of nitrided W18Cr4V steel in high-temperature sodium. Aging tests were conducted on nitrided W18Cr4V steel in sodium and in argon environments at various temperatures for different exposure times. The results showed that the nitrogen atoms in the nitrided layer exhibited bidirectional diffusion behavior in the sodium or argon environment at 540 °C. Compared to the argon environment, cracks formed within the nitrided layer and the diffusion of nitrogen into the sodium was accelerated in the nitrided layer. As a significant number of nitrogen atoms had diffused into the sodium, there was little difference in the hardness between nitrided W18Cr4V steel and non-nitrided W18Cr4V steel after long-term exposure to 540 °C sodium.

show abstract

Section: Introductionmentioning

confidence: 99%

A Study on the Aging Behavior of Nitrided W18Cr4V Steel in High-Temperature Sodium

Fu,

Liang,

Zhang

et al. 2024

Metals

View full text Add to dashboard Cite

show abstract

The compatibility of nitrided W18Cr4V steel in a sodium environment

Fu,

Liang,

Zhang

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The guideway friction pairs are the key components of the loading elevator and unloading elevator in the refueling system for sodium cooled fast reactor. With the excellent hardness and wear resistance in air, nitrided W18Cr4V steel is a candidate material for the guideway friction pairs. In order to evaluate the applicability in the high-temperature sodium, it is important to conduct the compatibility tests of nitrided W18Cr4V steel for different exposure time. The results show that the nitrogen content of nitrided W18Cr4V steel decreased obviously after 1000 h, 2000 h and 3000 h sodium compatibility tests at 540 °C and the nitrided strengthening effect of W18Cr4V steel gradually decreased with the test duration increasing.

show abstract

Refueling System for Fast Reactors: Creation and Development

Cited by 2 publications

References 0 publications

A Study on the Aging Behavior of Nitrided W18Cr4V Steel in High-Temperature Sodium

A Study on the Aging Behavior of Nitrided W18Cr4V Steel in High-Temperature Sodium

The compatibility of nitrided W18Cr4V steel in a sodium environment

Contact Info

Product

Resources

About