Naslov
Properties of pipes after high – frequency induction welding

Autori
Gojić, Mirko ; Kožuh, Stjepan ; Lazić, Siniša

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

Izvornik
Proceedings of 40th International October Conference on Mining and Metallurgy / Stanojlović, Rodoljub ; Sokolović, Jovica - Bor : Technical Faculty Bor, University of Belgrade, 2008, 481-486

ISBN
978-86-80987-60-6

Skup
40th International October Conference on Mining and Metallurgy

Mjesto i datum
Soko Banja, Srbija, 05.10.2008. - 08.10.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
low carbon steel ; high-frequency induction welding ; microstructure ; mechanical properties

Sažetak
In this work the results of analysis of microstructure and mechanical properties of seam pipes made from low carbon steel St. 37. 2 grade after high– frequency induction welding technique are shown. The seam pipes are produced by welding of the hot – rolled sheet (thickness of 3, 8 mm) into the seam pipes ø ; 114, 3x3, 8 and 26, 9x2, 65 mm respectively in industrial conditions. Microstructure testing of pipe samples was carried out by optical microscopy. It was found that the microstructure at base material / heat – affected zone interface is changing from the ferrite to the ferrite – pearlite. Greather content of the pearlite in the microstructure of the weld metal influence on the mechanical properties. By normalization of the pipes at 900°C the desirable mechanical properties were obtained with a homogenous ferrit – pearlite microstructure.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA