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Resistance of high-strength medium-alloy steel to brittle fracture and its connection with structural state parameters

https://doi.org/10.22349/1994-6716-2019-99-3-128-147

Abstract

Tests were carried out on the static crack resistance of sheet metal for experimental melts of highstrength martensitic-bainitic steel. They showed significant differences in the quality of the metal in this characteristic with relatively small differences in the content of alloying elements and production technology. A comparative metallographic analysis of the structural state of the metal, which differs in crack resistance, is performed. Based on the results of this analysis, the main microstructural factors are identified that correlate with the static crack resistance of the investigated material.

About the Authors

S. A. Golosienko
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Cand Sc. (Eng)

49 Shpalernaya St, 191015 St Petersburg, Russian Federation 


A. V. Il'in
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Dr Sc. (Eng)

49 Shpalernaya St, 191015 St Petersburg, Russian Federation 


A. A. Lavrentiev
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
49 Shpalernaya St, 191015 St Petersburg, Russian Federation


M. S. Mikhailov
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
49 Shpalernaya St, 191015 St Petersburg, Russian Federation


G. D. Motovilina
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Cand Sc. (Eng)

49 Shpalernaya St, 191015 St Petersburg, Russian Federation 


S. N. Petrov
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Cand Sc. (Chem)

49 Shpalernaya St, 191015 St Petersburg, Russian Federation 


K. E. Sadkin
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Cand Sc. (Eng)

49 Shpalernaya St, 191015 St Petersburg, Russian Federation



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Review

For citations:


Golosienko S.A., Il'in A.V., Lavrentiev A.A., Mikhailov M.S., Motovilina G.D., Petrov S.N., Sadkin K.E. Resistance of high-strength medium-alloy steel to brittle fracture and its connection with structural state parameters. Voprosy Materialovedeniya. 2019;(3(99)):128-147. (In Russ.) https://doi.org/10.22349/1994-6716-2019-99-3-128-147

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ISSN 1994-6716 (Print)