Description in English
The analysis of proposed project consists in dependences determination between service parameters and the changes coming at turbine principal components, it is deviations from stationary service, which present themselves by changes in structural and substructural region and by changes in both tensile and physical properties. The determination of in service materials degradation degree beeing complexly stressed both in creep and fatigue regions. The solving of characteristics complex of transition between convenient properties of base steel and welding metal from the point of view of longterm structural stability at heat activated processes during creep. On base of material characteristics changes, depending on service regimes, the determination of diagnostic method for service applicability degree assessment of components up to exhausting of their life at the quarantee of their service reliability and determination of their controlled ageing conditions.