Особенности влияния изохронного отжига на дефектную структуру наноразмерных многослойных покрытий Zr/Nb после наводораживания

Abstract

The development of radiation-resistant materials is an important challenge to improve safety and extend the lifetime of structures. Researchers propose the use of nanoscale multilayer coatings (NMCs) that are resistant to radiation damage and have the ability to repair defects across interfaces. Multilayer barriers such as Cu/V, Al/Nb, Cu/Mo and Fe/W effectively retain defect clusters and reduce radiation damage. HCP/BCC Zr/Nb interfaces can prevent defect formation when exposed to proton radiation. However, hydrogen embrittlement of Zr alloys is a problem. To increase the lifetime of nuclear reactors, the problem of reducing hydrogen embrittlement of zirconium components of reactor cores must be addressed. However, most of the works on irradiation of multilayer structures have only considered the structure after interaction with helium ions and proton beams. The aim of this work is to investigate the effect of isochronous annealing on the defect structure of nanoscale Zr/Nb multilayer coatings after hydrogenation