Results 1 to 10 of about 11,150 (222)
The Impact of Metal-Based Nanoparticles Produced by Different Types of Underwater Welding on Marine Microalgae [PDF]
Toxics, 2023 Underwater wet welding is commonly used in joining pipelines and in underwater construction. Harmful and hazardous compounds are added to many flux-cored wires for underwater welding and cutting, and can have a negative impact on marine life.
Konstantin Pikula +9 more
doaj +2 more sources
Comparison of the Level and Mechanisms of Toxicity of Nanoparticles of Underwater Welding in Bioassay with Three Marine Microalgae [PDF]
NanomaterialsIn this work, the toxicity level of nano- and microparticles obtained by underwater welding was assessed. The toxicity of nano- and microparticles obtained by underwater welding was evaluated on three types of marine microalgae: Heterosigma akashiwo ...
Konstantin Yu. Kirichenko +13 more
doaj +2 more sources
Attributes of FSW and UWFSW butt joints of armour grade AA5083 aluminium alloy: Impact of tool pin profile [PDF]
HeliyonAA5083 is an alloy of military-grade aluminum used to make lightweight combat vehicles. Combining this material with traditional welding methods results in the formation of grain agglomerations, alloy separation, porosity, and pores.
R. Saravanakumar +4 more
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Role of Bead Sequence in Underwater Welding. [PDF]
Materials (Basel), 2019 This paper presents examinations of the role of the bead sequence in underwater welding. Two specimens of wet welded layers made by covered electrodes with the use of normalized S355G10+N steel were welded by a reasonable bead sequence. For each specimen, metallographic macro- and micro-scopic tests were done.
Tomków J, Fydrych D, Rogalski G.
europepmc +4 more sources
Arc bubble edge detection method based on deep transfer learning in underwater wet welding [PDF]
Scientific ReportsThe stability of arc bubble is a crucial indicator of underwater wet welding process. However, limited research exists on detecting arc bubble edges in such environments, and traditional algorithms often produce blurry and discontinuous results.
Bo Guo, Xu Li
doaj +2 more sources
Underwater Laser Welding of Pure Ti: Oxidation and Hardening Behaviors
Metals, 2021 The local dry underwater laser welding of cp-Ti, with air as an assisting gas, and in a simulated underwater facility was researched, aiming to find a viable and economical method for repairing titanium alloy underwater vehicles in situ in the future ...
Manlelan Luo +5 more
doaj +1 more source
Effect of Welding Parameter on the Corrosion Rate of Underwater Wet Welded SS400 Low Carbon Steel
Applied Sciences, 2020 This study aims to determine the effect of welding parameters on the corrosion rate of underwater wet welded SS400 low carbon steel. The underwater wet welding process was conducted using shielded metal arc welding (SMAW). Three welding electrodes, i.e.,
E. Surojo +6 more
doaj +1 more source
Underwater Laser Welding/Cladding for High-performance Repair of Marine Metal Materials: A Review
Chinese Journal of Mechanical Engineering, 2022 With the rapid developments of marine resource exploitation, mounts of marine engineering equipment are settled on the ocean. When it is not possible to move the damaged equipment into a dry dock, welding operations must be performed in underwater ...
Guifang Sun +5 more
doaj +1 more source
Metals, 2022 To understand the relationship between microstructure and corrosion, in this study, underwater bead-on-plate laser welding was compared with the in-air laser welding of 10-mm-thick 304 stainless steel plates at different laser powers (2, 4, and 6 kW ...
Danbi Song +3 more
doaj +1 more source
Open Engineering, 2021 Underwater wet welding (UWW) is widely used in repair of offshore constructions and underwater pipelines by the shielded metal arc welding (SMAW) method. They are subjected the dynamic load due to sea water flow.
Surojo E. +7 more
doaj +1 more source