Naslov
Mechanical Properties of Steel Sheets S 700MC in Conditions of Dynamic Loading and their Modification Possibilities with Temperature annealing

Autori
Mamuzić, I. ; Buršak, M. ; Hidveghy, J.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Materials and Metallurgy, Summaries of Lectures / Mamuzić, Ilija - Zagreb : Hrvatsko metalurško društvo, 2004

Skup
6. Međunarodni simpozij Hrvatskog metalurškog društva, SHMD 2004, Materijali i metalurgija

Mjesto i datum
Šibenik, Hrvatska, 20.07.2004. - 24.07.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
mechanical properties; steel sheets

Sažetak
Article deals with the mechanical, fatigue and brittle fracture properties of steel sheets of mark S 700 MC with minimum yield stress of 700 MPa. The chemical composition and technogical regime of rolling process were changed during development of studies steel. The experimental programme was realized at 7 randomly selected meltages (26 coiled sheets) of hot rolled steel sheets with the thickness of 8 and 10 mm. Tensile test showed that 14% of steel sheets had the lower yield stress level like was prescribed (Rm about 21 %) whereas the lower values were measured in longitudinal direction (Re about 9, 9%). Deformation properties in the rolling direction were higher about 38%. The scatter of mechanical properties is not affected by the thickness of steel sheets. The anisotropy of mechanical properties given by the ratio ReL / ReT is in the range from 0, 91 up to 1, 05, RmL / RmT in the range 0, 93 to 0, 97 and A5L / A5T from 1, 0 to 1, 38. Brittle fracture properties of studied steel is guaranteed at 0 °C by notch toughness KCU = 60 J• cm– 2. When U-notch was used, all studied steel sheets successfully passed notch toughness test al – 20 °C for guaranteed level 35 J• cm– 2.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

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