Abstract
The kinetics of the decomposition of austenite in the heat-affected zone of welded joints of low-carbon microalloyed high-strength steels has been investigated. A new approach to selecting the parameters of the thermal cycle of welding that ensure the service characteristics of welded joints on a level no lower than the normative requirements is suggested.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
L. A. Efimenko, O. Yu. Elagina, E. M. Vyshemirskii, O. E. Kapustin, A. V. Muradov, and A. K. Prygaev, Traditional and Perspective Steels for Cross-Country Gas and Oil Pipe Lines (Logos, Moscow, 2011) [in Russian].
L. A. Efimenko, A. A. Shkapenko, and R. O. Ramus’, “Study of changes in the structure and properties in the heat-affected zone of welds of high-strength tube steels,” Truboprov. Transp.: Teor. Prakt., No. 1, 20–24 (2012).
L. A. Efimenko, O. E. Kapustin, and A. A. Shkapenko, “Formation of the structure of welded junctions upon automatic welding in shielding gases,” Truboprov. Transp.: Teor. Prakt., No. 4, 34–42 (2012).
L. A. Efimenko, O. Yu. Elagina, E. M. Vyshemirskii, and O. E. Kapustin, “Peculiarities of structure formation in welded joints of pipes from Kh80 high-strength steel produced by automatic arc welding at negative temperatures,” Nauka Tekh. Gas. Pomyshl., No. 1, 80–84 (2009).
L. I. Efron, Metal Science in “Large“ Metallurgy. Pipe Steels (Metallurgizdat, Moscow, 2012) [in Russian].
M. Yu. Matrosov, I. V. Lyasotskii, A. A. Kichkina, D. L. D’yakonov, and A. A. Efimov, “Microstructure in low-carbon low-alloy high-strength pipe steel,” Steel in Translation, 42, 84–93 (2012).
M. A. Smirnov, I. Yu. Pyshmintsev, and A. N. Boryakova, “Classification of microstructures of low-carbon pipe steels,” Metallurgist, 54, 444–454 (2010).
G. Krauss and S. W. Thompson, “Ferritic microstructures in continuous cooled low- and ultralowcarbon steels,” ISIJ Int. 35, 937–945 (1995).
V. M. Schastlivtsev, T. I. Tabatchikova, I. L. Yakovleva, S. Yu. Klyueva, A. A. Kruglova, E. I. Khlusova, and V. V. Orlov, “Microstructure and properties of low-carbon weld steel after thermomechanical strengthening,” Phys. Met. Metallogr. 113, 480–488 (2012).
V. M. Schastlivtsev, T. I. Tabatchikova, I. L. Yakovleva, S. Yu. Klyueva, A. A. Kruglova, E. I. Khlusova, and V. V. Orlov, “Effect of austenite-decomposition temperature on bainite morphology and properties of low-carbon steel after thermomechanical treatment,” Phys. Met. Metallogr. 114, 419–429 (2013).
STO Gazprom 2.2.3-137-2007. Instructions on the Technologies of Welding upon the Laying and Repairing of Commercial and Main Gas Pipelines, Part 2, Introduced 2007-09-22 (Izd-vo OAO IRTs Gazprom, Moscow, 2007) [in Russian].
STO Gazprom 2-2.2-358-2009. Instructions on Carrying out Welding Works upon Installation of Ground and Underwater Gas Pipelines Produced from Kh-80 and Kh-100 Steels, Introduced 2009-05-12 (Izd-vo OOO Gazprom Ekspo, Moscow, 2009) [in Russian].
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © L.A. Efimenko, A.A. Ramus’, A.O. Merkulova, 2015, published in Fizika Metallov i Metallovedenie, 2015, Vol. 116, No. 5, pp. 520–529.
Rights and permissions
About this article
Cite this article
Efimenko, L.A., Ramus’, A.A. & Merkulova, A.O. On the decomposition of austenite in the heat-affected zone upon welding of high-strength steels. Phys. Metals Metallogr. 116, 491–500 (2015). https://doi.org/10.1134/S0031918X15050063
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0031918X15050063