Effect of Deformation-Thermal Processing on the Microstructure and Mechanical Properties of Low-Carbon Structural Steel

Autor:	S. V. Gladkovskii, A. P. Zhilyaev, S. N. Sergeev, D. A. Dvoinikov, R. M. Galeev, I. M. Safarov
Rok vydání:	2021
Předmět:	Equiaxed crystals Materials science Transition temperature chemistry.chemical_element Izod impact strength test Condensed Matter Physics Microstructure Carbide chemistry Thermal Materials Chemistry Deformation (engineering) Composite material Carbon
Zdroj:	Physics of Metals and Metallography. 122:621-627
ISSN:	1555-6190 0031-918X
Popis:	An ultrafine-grained (UFG) structure of equiaxed and fiber types in the low-carbon structural steel 05G2MFBT (Fe–2Mn–Mo–V–Nb–Ti) has been formed with various techniques of deformation-heat treatment. This steel with a UFG structure has been found to exhibit higher strength properties. Different deformation techniques have been shown to produce either a fibrous or an equiaxed UFG structure with carbide particles of a wide range of sizes. The brittle fracture resistance of the fibrous UFG steel has been found to be higher than that of the fine-grained steel after controlled rolling and subsequent accelerated cooling. Standard bending-impact tests have shown that the steel with a fibrous UFG structure is characterized by higher impact strength characteristics and a lower ductile–brittle transition temperature.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::93125ca1fbc54ee2591ef6040eee26bf https://doi.org/10.1134/s0031918x21060090 Zobrazit plný text záznamu Full text from SpringerLink