![]() Over the last 30 years, stress corrosion cracking (SCC) has mainly been observed in the regions of welds between dissimilar materials that exist in these reactors. Nickel alloys are employed in welding these materials due to their characteristics such as high mechanical and corrosion resistance and suitable thermal expansion coefficients. Bead-on-plate welds were carried out with plasma and MIG/.read more read lessĪbstract: Low-carbon alloy steels and stainless steels are widely used in the primary circuits of pressurized water reactor (PWR)-type nuclear reactors. ![]() In this context, this paper aims to contribute to the studies related to the influence of the MIG and plasma current balance on the geometry of the bead weld and wire fusion rate. However, in recent years, the use of the diffusion of new electronic power sources used in welding has sparked up again the interest in plasma–MIG process. In the current literature, there is a shortage of information related to the process, and most of this goes back to the 1970s and 1980s when the technology available was not able to make the process viable for industry. ![]() The main characteristic of this is the independence between the heat input by the process and the deposited material, resulting in greater facility to control bead weld geometry. With this association, the advantages of each arc are combined. Abstract: One of the versions of the plasma–metal inert gas (MIG) process is basically a combination of a plasma arc with a MIG/metal active gas (MAG) arc in a single torch. ![]()
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