Some approaches to corrosion fatigue assessment for structural components of heat-and-power engineering equipment

摘要

Some approaches for assessment of corrosion fatigue of materials and structuralcomponents for power engineering equipment are presented. Here, the main attention waspaid for so-called “non-traditional” damages which are not predicted by normativeinstructions and which are occurred as result of long time of exploitation or as result ofdifferent reflections of operating regimes of equipment. Methods for strength and durabilityassessment of materials and structural elements are stated on the fracture mechanics basis.Expert assessment of technical state of heat-and-power engineering equipment is consideredwith taken into account of the actual data of metal properties and operating conditions ofequipment.