Effect of structural parameters and nonmetallic inclusions on the impact strength of rail steel

Autor:	M. A. Stambul'chik, V. I. Syreishchikova, I. V. Koshina, É. L. Kolosova, A. B. Dobuzhskaya
Rok vydání:	1988
Předmět:	Zirconium Materials science Cementite Metallurgy Metals and Alloys Oxide Vanadium chemistry.chemical_element Izod impact strength test Condensed Matter Physics chemistry.chemical_compound chemistry Mechanics of Materials Grain boundary Tin Titanium
Zdroj:	Metal Science and Heat Treatment. 30:778-781
ISSN:	1573-8973 0026-0673
Popis:	1. A reduction in the level of impact strength for quenched and tempered steel on introducing vanadium and titanium into it is caused by cementite platelet thickening and presence of dispersed V(C, N) and TiN particles. Microalloying with zirconium in the amounts studied does not affect steel structure and the level of impact strength. 2. Cases of a reduction in impact strength for rail steel to 15 J/cm2 are connected with presence in their structure of a large number of ductile oxide inclusions. Apparently, by being located along grain boundaries, they disrupt steel continuity. Formation of these inclusions may be connected with insufficient steel deoxidation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::24f7c58cca6263bd56ab0918236e26eb https://doi.org/10.1007/bf00699564 Zobrazit plný text záznamu Full text from SpringerLink