Investigation on the microstructure and mechanical properties of ASTM A131 steel manufactured by different welding methods

• Autorzy: Ata Fatih , Calık Adnan , Ucar Nazim

Identyfikatory

DOI

10.2478/adms-2022-0017

• Języki publikacji: EN

Abstrakty

EN

Welding is an indispensable manufacturing process in the shipbuilding industry. The fierce competition involved often necessitates a cost-effective and reliable welding method. In this study, the weldabilities, microstructures and some mechanical properties of ASTM A131 (Grade A) steel joints fabrication by submerged arc welding (SAW), metal active gas (MAG) welding and plasma arc welding (PAW) have been investigated. The microstructures of the welds were examined by optical microscopy. The mechanical properties of the joints were determined by microhardness measurements, tensile and impact tests. The results showed that tensile strength of the joints reached a tensile strength of up to 462 MPa. The locations of the fractures were always adjacent to the base metal. The Charpy impact energy of the weld metal reached a value of 72.5 J, which was 25 % higher than that of the base metal at 57.7 J. A relatively high hardness of 221 HV was obtained in the PAW method compared to 179 HV in the base metal.

Słowa kluczowe

EN

grade A steel; welding; tensile failure; hardness

PL

gatunek stali A; spawanie; rozerwanie przy rozciąganiu; twardość

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2022
• Tom: Vol. 22, nr 4(74)
• Strony: 32--40
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Ata Fatih

• Isparta University of Applied Sciences, Faculty of Technology, Mechanical Engineering, 32260, Isparta, Türkiye

autor

Calık Adnan

• Isparta University of Applied Sciences, Faculty of Technology, Mechanical Engineering, 32260, Isparta, Türkiye

autor

Ucar Nazim

• Süleyman Demirel University, Faculty of Arts and Sciences, Department of Physics, 32260, Isparta, Türkiye

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).