Phase composition, microstructure, and mechanical properties of steel 20GTL with different titanium concentrations

Autor:	L. P. Zhitova, Vladimir V. Popov, A. A. Filippenkov, N. V. Gaeva, B. M. Bronfin
Rok vydání:	1981
Předmět:	Air cooling Work (thermodynamics) Materials science Transition temperature Metallurgy Metals and Alloys chemistry.chemical_element Fracture mechanics Nitride Condensed Matter Physics Microstructure Nitrogen chemistry Mechanics of Materials Titanium
Zdroj:	Metal Science and Heat Treatment. 23:434-437
ISSN:	1573-8973 0026-0673
DOI:	10.1007/bf00699550
Popis:	1. After normalization of steel with excess titanium as compared with nitrogen, one observes three types of nitrides and carbonitrides: titanium nitrides that are present in the cast steel, high-carbon carbonitrides precipitated in the process of holding during normalization, and highly dispersed carbonitrides precipitated in the process of air cooling. 2. Additional treatment of steel 20GTL with SiCa has no effect on the work of crack propagation in the ductile condition or the ductile-brittle transition temperature but increases the work of crack initiation. 3. The best combination of mechanical properties is obtained for steel 20GTL with 0.02–0.03% Ti that is additionally treated with SiCa.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::94ef5611d1c46abad18aca2440f51c08 https://doi.org/10.1007/bf00699550 Zobrazit plný text záznamu Full text from SpringerLink