HARDENING PHASES IN W-RE ALLOYS: MECHANISMS, PROPERTIES AND TEMPERATURE STABILITY

W-Re alloys are unique refractory materials that exhibit excellent mechanical properties and high thermal stability. Strengthening of these alloys is achieved through the formation of various phases such as carbides, ox ides and intermetallides, which increase strength, ductility and resistance to thermal stress. The aim of this review is to summarise current data on the types of strengthening phases, their mechanisms of formation and their influ ence on the mechanical properties and thermal stability of W-Re alloys. Key aspects of hardening, including dis location mechanisms, solid-phase interactions and microstructure stabilisation at high temperatures are discussed. The prospects for the use of W-Re alloys in extreme conditions and directions for further research to improve their performance are considered.