Naslov
Microstructural analysis of carbon steel after shielded metal arc welding process

Autori
Kožuh, Stjepan ; Gojić, Mirko ; Kosec, Borut ; Lukač, Davor

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

Izvornik
Proceedings and book of abstracts MME SEE 2015 / Korać, Marija - Beograd : Association of Metallurgical Engineers of Serbia, Faculty of Technology and Metallurgy University of Belgrade, Metallurgical Academic Network of SEE Countries, Lola Institute, 2015, 301-306

Skup
Metallurgical&Materials Engineering Congress of South-East Europe

Mjesto i datum
Beograd, Srbija, 03.06.2015. - 05.06.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
welding ; carbon steel ; microstructure ; hardness

Sažetak
The aim of this paper was to determine the microstructure and hardness of welded joint of carbon steel API 5L X52. The pipe dimension 219.1 x 5.6 mm is welded to the abutting V- joint. The root and filling passes as V-joint was performed by shielded metal arc welding (SMAW) process with electrodes type Boehler FOX CEL Mo with diameter of 2.5 and 3.2 mm. Analysis of the microstructure of welded joint was carried out by optical and scanning electron microscopy (SEM), respectively. The obtained microstructure was ferrite with less portion of pearlite. In microstructure of the weld metal regions with Widmanstatten`s ferrite was observed. The energy dispersive spectrometry (EDS) analysis showed sporadically presence of slag inclusions in the weld metal. The microhardness was measured in the base material, heat affected zone and weld metal. The hardness values of weld metal and heat affected zone were less than the base material.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA