The Effect of Wet Underwater Welding on Cold Cracking Susceptibility of Duplex Stainless Steel
2016; De Gruyter; Volume: 16; Issue: 2 Linguagem: Inglês
10.1515/adms-2016-0010
ISSN2083-4799
AutoresJerzy Łabanowski, Karolina Prokop-Strzelczyńska, Grzegorz Rogalski, Dariusz Fydrych,
Tópico(s)Welding Techniques and Residual Stresses
ResumoAbstract The present work was conducted to assess the weldability of duplex stainless steel in underwater conditions. Metal manual arc welding (MMA) with the use of coated electrodes was used in the investigations. Tekken weldability tests were performed underwater at 0.5 m depth and in the air. Nondestructive tests, metallographic examinations of welds, ferrite content assessment in microstructure and hardness test were performed. The good weldability at underwater conditions of duplex stainless with the use of MMA method was confirmed, however difficulties in stable arc burning were revealed.
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