Author:
Fu Xiaogang,Liang Na,Zhang Wei,Tao Liu,Qin Bo,Ruan Zhangshun,Long Bin
Abstract
Abstract
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.
Reference13 articles.
1. Optimization of refueling times in fast neutron reactors[J];Tashlykov;IOP Conf. Series: Materials Science and Engineering,2021
2. Refueling system for fast reactors: Creation and development[J];Dushev;Atomic Energy,2020
3. The verifying test of refueling system of the China Experimental Fast Reactor[J];Wang;Chinese Journal of Nuclear Science and Engineering,2008
4. Improvement of mechanical properties of martensitic stainless steel by plasma nitriding at low temperature[J];Xi;Acta Metall. Sin.(Engl. Lett.),2008
5. New ideas on the mechanism of structure formation in nitrided steels[J];Gerasimov;Metal Science and Heat Treatment,2004