The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW
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Buyukyildirim, G.Sedmak, Aleksandar

Prokić-Cvetković, Radica
Popović, Olivera
Jovicić, R.
Bulatović, Srđan

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The effect of MIG/MAG shielding gas on the toughness of aluminium alloy AlMg4.5Mn weld metal has been analysed using the instrumented Charpy pendulum for standard toughness testing. The MIG/MAG welding was performed in the shielded atmosphere of Ar, as well as the mixtures of gases Ar + 0.0307 % O 2, Ar + 30 % He + 0.0317 %O 2 and Ar + 48 % He + 0.0290 % O 2. Metallographic tests have been performed in order to check the appearance and porosity of the weld metal, as well as its toughness testing at different temperatures (20, - 90, - 196 °C), using the instrumental Charpy pendulum, in order to separate the crack initiation and crack growth energy. In this way, a comprehensive insight of the effect of shielding gas on the weld metal toughness has been obtained.
Keywords:
Shielding gas mixture / MIG/MAG welding / Impact testing / Crack initiation energy / Crack growth energy / Aluminium alloy / Almg4.5MnSource:
FME Transactions, 2011, 39, 3, 127-132Publisher:
- Univerzitet u Beogradu - Mašinski fakultet, Beograd
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Institut za ispitivanje materijalaTY - JOUR AU - Buyukyildirim, G. AU - Sedmak, Aleksandar AU - Prokić-Cvetković, Radica AU - Popović, Olivera AU - Jovicić, R. AU - Bulatović, Srđan PY - 2011 UR - http://rims.institutims.rs/handle/123456789/144 AB - The effect of MIG/MAG shielding gas on the toughness of aluminium alloy AlMg4.5Mn weld metal has been analysed using the instrumented Charpy pendulum for standard toughness testing. The MIG/MAG welding was performed in the shielded atmosphere of Ar, as well as the mixtures of gases Ar + 0.0307 % O 2, Ar + 30 % He + 0.0317 %O 2 and Ar + 48 % He + 0.0290 % O 2. Metallographic tests have been performed in order to check the appearance and porosity of the weld metal, as well as its toughness testing at different temperatures (20, - 90, - 196 °C), using the instrumental Charpy pendulum, in order to separate the crack initiation and crack growth energy. In this way, a comprehensive insight of the effect of shielding gas on the weld metal toughness has been obtained. PB - Univerzitet u Beogradu - Mašinski fakultet, Beograd T2 - FME Transactions T1 - The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW EP - 132 IS - 3 SP - 127 VL - 39 UR - https://hdl.handle.net/21.15107/rcub_rims_144 ER -
@article{ author = "Buyukyildirim, G. and Sedmak, Aleksandar and Prokić-Cvetković, Radica and Popović, Olivera and Jovicić, R. and Bulatović, Srđan", year = "2011", abstract = "The effect of MIG/MAG shielding gas on the toughness of aluminium alloy AlMg4.5Mn weld metal has been analysed using the instrumented Charpy pendulum for standard toughness testing. The MIG/MAG welding was performed in the shielded atmosphere of Ar, as well as the mixtures of gases Ar + 0.0307 % O 2, Ar + 30 % He + 0.0317 %O 2 and Ar + 48 % He + 0.0290 % O 2. Metallographic tests have been performed in order to check the appearance and porosity of the weld metal, as well as its toughness testing at different temperatures (20, - 90, - 196 °C), using the instrumental Charpy pendulum, in order to separate the crack initiation and crack growth energy. In this way, a comprehensive insight of the effect of shielding gas on the weld metal toughness has been obtained.", publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd", journal = "FME Transactions", title = "The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW", pages = "132-127", number = "3", volume = "39", url = "https://hdl.handle.net/21.15107/rcub_rims_144" }
Buyukyildirim, G., Sedmak, A., Prokić-Cvetković, R., Popović, O., Jovicić, R.,& Bulatović, S.. (2011). The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW. in FME Transactions Univerzitet u Beogradu - Mašinski fakultet, Beograd., 39(3), 127-132. https://hdl.handle.net/21.15107/rcub_rims_144
Buyukyildirim G, Sedmak A, Prokić-Cvetković R, Popović O, Jovicić R, Bulatović S. The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW. in FME Transactions. 2011;39(3):127-132. https://hdl.handle.net/21.15107/rcub_rims_144 .
Buyukyildirim, G., Sedmak, Aleksandar, Prokić-Cvetković, Radica, Popović, Olivera, Jovicić, R., Bulatović, Srđan, "The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW" in FME Transactions, 39, no. 3 (2011):127-132, https://hdl.handle.net/21.15107/rcub_rims_144 .