Generate QR code
Open Access
Subscription Access
Structure changes of high-strength economically alloyed steel 09KhGN2MD (09CrMnNi2MoCu) when tempering
https://doi.org/10.22349/1994-6716-2018-93-1-15-26
Abstract
Purpose of the present investigation is to determine the optimal heat treatment parameters that ensure yield strength over 690 MPa in combination with toughness of at least 35 J/cm2 at temperature –70°C in new economically alloyed cold-resistant steel. The effect of various quenching and tempering parameters on mechanical properties, structure of steel and fracture mode of samples after impact tests at temperature –70°C has been studied. The relationship between the properties, structure and fracture mode of steel samples is shown. The optimal heat treatment parameters of new economically alloyed cold-resistant steel are determined.
Keywords
economically alloyed high-strength steel,
coldresistance,
reduction of carbon equivalent,
scanning electron microscopy,
transmission electron microscopy,
mechanical properties,
structure,
bainite,
martensite,
quenching,
tempering
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
M. V. Golubeva
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
49, Shpalernaya St, 191015 St Petersburg
Russian Federation
49, Shpalernaya St, 191015 St Petersburg
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
G. D. Motovilina
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Cand. Sc. (Eng)
49, Shpalernaya St, 191015 St Petersburg
E. V. Sviatysheva
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
49, Shpalernaya St, 191015 St Petersburg
Russian Federation
49, Shpalernaya St, 191015 St Petersburg
S. V. Rogozhkin
NRC “Kurchatov Institute” – Institute for Theoretical and Experimental Physics; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
Dr Sc. (Phys-Math)
25, Bolshaya Cheremushkinskaya St, 117218, Moscow;
31, Kashirskoe shosse, 115409, Moscow
A. A. Lukyanchuk
NRC “Kurchatov Institute” – Institute for Theoretical and Experimental Physics
Russian Federation
25, Bolshaya Cheremushkinskaya St, 117218, Moscow
Russian Federation
25, Bolshaya Cheremushkinskaya St, 117218, Moscow
References
1. Nastich, S.Yu., Morozov, Yu.D., Marchenko, V.N., Stepashin, A.M., Zyryanov, V.V., Sorokolet, O.V., Novaya iznosostoykaya stal 17KhGN2MFBT dlya kuzovov karyernykh samosvalov [New wear-resistant steel 17KhGN2MFBT for bodies of quarry dump trucks], Stal, 2005, No 3, pp. 82–85.
2. Nastich, S.Yu., Morozov, Yu.D., Marchenko, V.N., Stepashin, A.M., Zyryanov, V.V., Sorokolet, O.V., Razrabotka i promyshlennoe oprobovanie vysokoprochnoy svarivayemoy stali s vysokoy khladostoykostyu dlya nesushchikh konstruktsiy v transportnom mashinostroenii [Development and industrial testing of high-strength welded steel withhigh cold resistance for bearing structures in transport engineering], Metallurg, 2005, No 5, pp. 55–58.
3. Rybin, V.V., Malyshevsky, V.A., Khlusova, E.I., Vysokoprochnye svarivaemye stali [High-strength welded steels], St Petersburg: Publishing house of Polytechnic University, 2014.
4. Semicheva, T.G., Khlusova, E.I., Sherokhina, L.G., Protsessy karbidoobrazovaniya i khrupkost pri otpuske sudostroitelnoy stali [Processes of carbide formation and brittleness during the release of shipbuilding steel], Voprosy Materialovedeniya, 2005, No 2 (42), pp. 69–78.
5. Golosienko, S.A., Motovilina, G.D., Khlusova, E.I., Vozmozhnosti povysheniya prochnostnykh kharakteristik ekonomnolegirovannykh vysokoprochnykh staley za schet obrazovaniya nanorazmernykh karbidov [Possibilities of increasing the strength characteristics of economically alloyed highstrength steels due to the formation of nanoscale carbides], Voprosy Materialovedeniya, 2010, No 3 (59), pp. 52–64.
6. Khlusova, E.I., Orlov, V.V., Motovilina, G.D., Korchagin, A.M., Matrosov, M.Yu., Vliyanie otpuska na izmenenie struktury i svoystv vysokoprochnoy shtripsovoy stali kategorii prochnosti Kh90 i Kh100 posle termomekhanicheskoy obrabotki [Effect of tempering on the change in the structure and properties of high-strength steel stripsof strength category X90 and X100 after thermomechanical treatment], Metallurg, 2010, No 11, pp. 68–73.
7. Rogozhkin, S.V., Aleev, A.A., Lukyanchuk, A.A., Shutov, A.S., Raznitsyn, O.A., Kirillov, S.E., Prototip atomnogo zonda s lazernym ispareniyem [Prototype of an atomic probe with laser evaporation], Pribory i tekhnika eksperimenta, 2017, No 3, pp. 129–134.
8. Raznitsyn, O.A., Lukyanchuk, A.A., Shutov, A.S., Rogozhkin, S.V., Aleev, A.A., Optimizatsiya parametrov analiza materialov metodami atomno-zondovoy tomografii s lazernym ispareniyem atomov [Optimization of parameters of material analysis by atomic-probe tomography with laser evaporation of atoms], Mass-spectrometria, 2017, V. 14, No 1, pp. 33–39.
9. Golubeva, M.V., Sych, O.V., Khlusova, E.I., Motovilina, G.D., Issledovanie mekhanicheskikh svoystv i kharaktera razrusheniya novoyekonomnolegirovannoy khladostoykoy stali s garantirovannym pre-delom tekuchesti 690 MPa [Investigation of the mechanical properties and character of the destruction of a new economically alloyed cold-resistant steel with a guaranteed yield point of 690 MPa], Aviatsionnye materialy i tekhnologii, 2017, No 4 (49), pp. 19–24.
Review
For citations:
Golubeva M.V., Sych O.V., Khlusova E.I., Motovilina G.D., Sviatysheva E.V., Rogozhkin S.V., Lukyanchuk A.A. Structure changes of high-strength economically alloyed steel 09KhGN2MD (09CrMnNi2MoCu) when tempering. Voprosy Materialovedeniya. 2018;(1(93)):15-26. (In Russ.) https://doi.org/10.22349/1994-6716-2018-93-1-15-26
Views:
353
Email this article 