Tehnički vjesnik, Vol. 27 No. 3, 2020.
Stručni rad
https://doi.org/10.17559/TV-20190131102020
Investigation of the Impact of Hot Forming the Properties of Seamless Steel Bottles for Liquefied Gases
Vlatko Marušić
; Mechanical Engineering Faculty in Slavonski Brod, University of JosipJurajStrossmayer in Osijek, Trg Ivane Brlić Mažuranić 2, 35000 Slavonski Brod, Croatia
Srbislav Aleksandrović
; Faculty of Engineering, University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Serbia
Bogdan Nedić
; Faculty of Engineering, University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Serbia
Andrijana Milinović
; Mechanical Engineering Faculty in Slavonski Brod, University of JosipJurajStrossmayer in Osijek, Trg Ivane Brlić Mažuranić 2, 35000 Slavonski Brod, Croatia
Sažetak
Mechanical tests were performed on samples prepared from the body and the neck of bottles made of seamless tube, steel 34CrMo4. Plastic material flow curves were taken from tensile tests on samples which were made from tubes and finished bottles. Deformation hardening intensity is calculated, and propensity towards brittle fracture is estimated on the basis of the ratio of total elongation and elongation at maximum load. Compared to the samples of quenched and tempered bottle body, quenched and tempered bottle neck samples indicate that characteristics of strength are almost unchanged with an increase in the minimum strain at the destruction from 12,8% to 15,1%. It was concluded that the results of the plastic material flow can serve as a preliminary indication of anomalies that could contribute to unsatisfactory results of the burst test.
Ključne riječi
hot forming; investigation; properties; seamless bottles; tensile test
Hrčak ID:
239116
URI
Datum izdavanja:
14.6.2020.
Posjeta: 1.072 *