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Structure and properties of the heat-affected zone of low-alloyed cold-resistant steel for arctic application
https://doi.org/10.22349/1994-6716-2018-94-2-30-51
Abstract
The paper presents the results of a comprehensive study of structural and properties changes in the most dangerous regions of the heat-affected zone of low-alloyed cold-resistant steel with a guaranteed yield strength of 355–390 MPa before and after the post-welding tempering, including when the heating temperature is subjected to tempering and deformation, comparing with the base metal. The simulation was performed on the dilatometer DIL 805 and the GLEEBLE 3800 complex. The results of the investigation of the structure and properties of real welded joints after welding with different linear energy (3.5 and 6 kJ/mm) are presented.
Keywords
base metal,
coarse-grain region of the HAZ,
partial recrystallization region of the HAZ,
postwelding release,
bainite,
ferrite-carbide mixture,
recrystallization,
deformation rate,
deformation capacity,
failure mode,
welded joint
Supporting agencies: Experimental studies were performed on the equipment of the laboratory of the Test and Technical Complex of Irradiated and Radionuclide Materials and the Center for Collective Use “Composition, Structure and Properties of Structural and Functional Materials” of the NRC “Kurchatov Institute” – CRISM “Prometey with financial support of the Ministry of Education and Science of Russian Federation within the framework of the agreement 14.595.21.0004.
About the Authors
O. V. Sych
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Cand Sc. (Eng)
49, Shpalernaya St, 191015, St Petersburg
E. I. Khlusova
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Dr Sc. (Eng)
49, Shpalernaya St, 191015, St Petersburg
U. A. Pazilova
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Cand Sc. (Eng)
49, Shpalernaya St, 191015, St Petersburg
E. A. Yashina
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
49, Shpalernaya St, 191015, St Petersburg
Russian Federation
49, Shpalernaya St, 191015, St Petersburg
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Review
For citations:
Sych O.V., Khlusova E.I., Pazilova U.A., Yashina E.A. Structure and properties of the heat-affected zone of low-alloyed cold-resistant steel for arctic application. Voprosy Materialovedeniya. 2018;(2(94)):30-51. (In Russ.) https://doi.org/10.22349/1994-6716-2018-94-2-30-51
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