Influence of original structure and heating rate on the properties of steel after hardening from the intercritical range

Autor:	A. G. Vasil'eva, V. G. Sazonov, T. V. Gulyaeva
Rok vydání:	1981
Předmět:	Materials science Mechanics of Materials Ferrite (iron) Metallurgy Metallic materials Metals and Alloys Hardening (metallurgy) Tempering Composite material Condensed Matter Physics
Zdroj:	Metal Science and Heat Treatment. 23:362-366
ISSN:	1573-8973 0026-0673
DOI:	10.1007/bf00700553
Popis:	The original condition and heating rate determine the mechanical properties of the steel after hardening from the intercritical range. The best properties, particularly ductility, σt=1600 MPa, σ0.2=1250 MPa, δ=14%, andan=0.9 MJ/m2, are obtained after preliminary hardening from 930°C, tempering at 200°C, a second hardening from 800°C (∼5% ferrite), and tempering at 200°C. Full hardening from 930°C with subsequent tempering at 200°C (without preliminary hardening) makes it possible to obtain σt=1550 MPa, σ0.2=1200 MPa, δ=9%, andan=0.9 MJ/m2.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b40bc29d3c28d32a136a7e24e29b0fa7 https://doi.org/10.1007/bf00700553 Zobrazit plný text záznamu Full text from SpringerLink