Naslov
Niobium Influence on Microalloyed Hot Torsion Steel Natural Deformation Resistance and Fracture

Autori
Rešković, Stoja ; Vodopivec, Franc ; Parilak, Ludvit ; Mamuzić, Ilija

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 6th International Scientific Conference on Production Engineering "Computer Integrated Manufacturing and High Speed Machining" / Cebalo, Roko ; Schulz, Herbert - Zagreb : Hrvatska udruga proizvodnog strojarstva (HUPS), 2000

Skup
6th International Scientific Conference on Production Engineering "Computer Integrated Manufacturing and High Speed Machining"

Mjesto i datum
Lumbarda, Hrvatska, 08.06.2000. - 09.06.2000

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
niobij microalloyed steel; natural deformation resistance; max moment of torsion

Sažetak
In this work the natural deformation resistance of the microalloyed 0.048%Nb steel was tested. By the method of torsion to break the natural deformation resistance kf in the temperature region of 910-1250C was investigated. The specimens were torsed to break and quickly cooled in the water. The fracture of hot torsion specimens was investigated by scanning electron microscopy. The fracture surface is characterized by dimple like fracture. The relation of Nb precipitates, fracture surface of hot torsion specimens and the curve of the natural deformation resistance was confirmed. Over the temperature range of 910-830C the increase of natural deformation resistance due to Nb carbonitrides was found.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA