Change in the structure and properties of thick-sheet ferrite-bainite high-strength pipe steel under the influence of heat treatment

• Published in: Metal science and heat treatment Vol. 53; no. 5-6; pp. 218 - 224
• Main Authors: Matrosov, M. Yu, Talanov, O. P., Lyasotskii, I. V., Kichkina, A. A.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-08-2011; Springer; Springer Nature B.V
• Subjects: Analysis; Carbides; Characterization and Evaluation of Materials; Chemistry and Materials Science; Classical Mechanics; Engineering Thermodynamics; Heat and Mass Transfer; Heat Treatment; High strength steels; Iron compounds; Materials Science; Mechanical properties; Metallic Materials; Pipe; Precipitation; Rain and rainfall; Strength; Structural steels; fine particles of Nb and/or V carbides; heat treatment; high-strength pipe steels; ferrite-bainite structure
• ISSN: 0026-0673; 1573-8973
• DOI: 10.1007/s11041-011-9372-4

The change in mechanical properties and structural state is studied for steel of strength class K65 after heating to different temperatures. The change in strength properties with heating in the temperature range for precipitation of fine particles of Nb and V carbides is compared with particle morphology. Recommendations are worked out on the basis of results obtained for improving the mechanical properties for high-strength steels with a ferrite-bainite structure.