Avtomaticheskaya Svarka (Automatic Welding), #1, 2019, pp. 18-22
Restorative heat treatment of steam pipelines and their welded joints (Review)
V.V. Dmitrik1, E.S. Garashchenko1, A.V. Glushko1, V.N. Sokolova2, T.A, Syrenko1
NTU «Kharkov Polytechnic Institute», 2 Kirpicheva Str., 61002, Kharkov, Ukraine
Kharkov Heat and Power Plant-3, 3 Energeticheskaya Str., 61036, Kharkov, Ukraine. E-mail: firstname.lastname@example.org
The state and key directions of development of the technology of restorative heat treatment of welded joints of steam pipelines are considered. The technologies of heat treatment and their advantages and disadvantages are presented. The first part of the review presents a summary of the development of restorative heat treatment. The directions of development of restorative heat treatment of welded joints, the most promising for extension of service life of steam pipelines according to the opinion of the authors, were formulated and justified. The justification of the possibility of using heat treatment of long-operating elements of steam pipelines with a degraded structure and presence of damageability is given. The possibility of producing a metal of a steam line with a structural state and properties, satisfying the service requirements is justified. 23 Ref., 3 Fig.
Keywords: restorative heat treatment, steam pipeline, welded joints, metal structure, operation, damageability
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