- BUILDING MATERIALS AND PRODUCTS
- Performance Characteristics Of Thick Plate Rolled Products Of Economically Alloyed Thermally Improved Steels
- UDC 621.771:669.15 DOI: 10.33622/0869-7019.2020.10.09-16
Vitaliy M. GORITSKIY, e-mail: firstname.lastname@example.org
Georgy R. SHNEYDEROV, e-mail: email@example.com
Karimzhon M. BOBAEV, e-mail: firstname.lastname@example.org
Melnikov Central Research and Design Institute of Steel Structures, ul. Arkhitektora Vlasova, 49, Moscow 117997, Russian Federation
Abstract. The influence of the chemical composition and thickness of sheet metal on the structure, hardenability and complex of mechanical characteristics (yield strength, breaking strength, impact strength, hardness, plasticity) of economically alloyed steels in a thermally improved state is considered. The analysis of the influence of chromium, molybdenum, manganese, tungsten, boron, and nickel on the structure, strength, and impact strength of thick-rolled economically alloyed steels was performed using the ranking method. The influence of the type of structure (ferrite, bainite) and the grain size of ferrite on the work of propagation of a ductile crack and resistance to brittle fracture has been investigated. The influence of sheet thickness on the work of the nucleation and propagation of a viscous crack for some steels is shown. The authors successfully applied the method of variation series for ranking the main characteristics of steel - the level of yield strength of impact strength. The obtained actual properties of economically alloyed thick-sheet steels can help designers in choosing technical solutions for critical objects.
Key words: economically alloyed thick-sheet steel, hardenability, impact toughness, structure, high-strength steel, alloying, bainite, ferrite.
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- For citation: Goritskiy V. M., Shneyderov G. R., Bobaev K. M. Performance Characteristics of Thick Plate Rolled Products of Economically Alloyed Thermally Improved Steels. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2020, no. 10, pp. 9-16. (In Russian). DOI: 10.33622/0869-7019.2020.10.09-16.