Study of microstructure and properties of ultrahigh-strength pipe steel of strength category x120 prepared under laboratory conditions

Autor:	I. A. Simbukhov, Yu. D. Morozov, D. L. Dyakonov
Rok vydání:	2012
Předmět:	Toughness Materials science Bainite Metallurgy Metals and Alloys chemistry.chemical_element Condensed Matter Physics Microstructure chemistry Mechanics of Materials Martensite Smelting Materials Chemistry Tempering Composite material Ductility Boron
Zdroj:	Metallurgist. 56:510-518
ISSN:	1573-8892 0026-0894
DOI:	10.1007/s11015-012-9607-7
Popis:	Experimental melting is carried out at the Bardin TsNIIchermet research complex for smelting steel of strength category X120 of two chemical composition versions: microalloyed with and without boron. Thermomechanical rolling is implemented in a laboratory rolling mill with different interrupted cooling temperatures in order to form ferrite-bainite, bainite, and martensite structures. Accelerated tempering technology is simulated, including accelerated heating after interrupted accelerated cooling to 620–640°C with the aim of increasing ductility and toughness. Mechanical tests and metallographic analysis are performed. The steel obtained exhibits mechanical properties corresponding to strength category X120 according to ISO 3183:2007.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4aa004a7f02fe8e85129809d4497eeaf https://doi.org/10.1007/s11015-012-9607-7 Zobrazit plný text záznamu Plný text ve formátu PDF