Study of quality of welded joints of high-strength ferritic steel made with a cover of a mixture of argon and hydrogen
Więcej
Ukryj
1
Ignacy Mościcki University of Applied Sciences in Ciechanów, ul. Narutowicza 9, 06-400 Ciechanów, Poland
2
Warsaw University of Technology, ul. Narbutta 85, 02-524 Warsaw, Poland
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Adv. Sci. Technol. Res. J. 2025; 19(6):215-222
SŁOWA KLUCZOWE
DZIEDZINY
STRESZCZENIE
Testing of joints made during welding with a TIG of high-strength, fine-grained ferritic steels confirms that a small addition of hydrogen to the argon-based shielding mixture does not affect the formation of hydrogen cracking. It is very important to strictly adhere to the technological regimes during steel preparation before and after welding. Then the controlled addition of hydrogen coming from the casing mixture has a positive effect. Due to the presence of 2% hydrogen, the joints are characterised by deeper penetration, lower inclination to edge flooding and smooth face. They are technically correct and impeccable in terms of aesthetics.