Results 11 to 20 of about 45,254 (277)
Journal of Materials Research and Technology, 2022 This paper aimed to investigate the feasibility of underwater wet welding for Inconel 625 alloy using Ni-based filler. The microstructure, elemental distribution, and properties of underwater wet welded Inconel 625 alloy joints were analyzed.
Hongliang Li +7 more
doaj +3 more sources
Materials & Design, 2023 Underwater wet welding is widely used in offshore platform maintenance, oil pipeline repair and wreck salvage operations. A high diffusible hydrogen content is recognized as one of the critical reasons behind the reduction in the reliability of ...
Ning Guo +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
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Journal of Materials Research and Technology, 2021 Hydrogen cracking (cold cracking), both in the heat-affected zone (HAZ) and in weld metal (WM) is one of the main factors responsible for losses in ductility and toughness in wet welds.
V.R. Santos +8 more
doaj +1 more source
Journal of Materials Research and Technology, 2023 In underwater wet welding, a hydrogen-rich arc atmosphere generated by the thermal decomposition of water leads to extremely high diffusible hydrogen content and defects such as pores and cracks in the weld.
Xin Zhang +6 more
doaj +1 more source
Corrosion resistance of welded joints made by underwater wet welding
Transfer of Innovative Technologies, 2021 One of the reasons of coming out of order of metal structures, operating in water environment, including sea conditions, is the corrosion. Thus, for example, the corrosion wear of metal of the ship hull underwater part can reach from 0.3 up to 0.5 mm/year. The corrosion of welds is the ever more critical situation.
Sergey Maksimov +3 more
openaire +4 more sources
Control weld geometric parameters when wet underwater welding
Pidvodni tehnologii, 2020 The aquatic environment has a significant impact on the efficiency of heat input to the base metal, significantly reducing the efficiency of the arc. As a result, in wet underwater welding, the penetration of the base metal is reduced compared to welding in the air with the same mode parameters.
Yanfei, Han, Ning, Guo, Jicai, Feng
openaire +3 more sources
Effect of the water depth on the hydrogen content in SMAW wet welded joints
SN Applied Sciences, 2020 Hydrogen-induced cold cracking is a huge challenge in underwater wet welding. In the present study, the influence of water depth on the diffusible and residually stored hydrogen content is investigated for the case of underwater wet shielded metal arc ...
Jan Klett +5 more
doaj +1 more source
Assessing carbon dioxide emission reduction potentials of improved manufacturing processes using multiregional input output frameworks [PDF]
, 2016 Evaluating innovative process technologies has become highly important within the last decades. As standard tools different Life Cycle Assessment methods have been established, which are continuously improved.
Burger, Mia +10 more
core +1 more source
Metals, 2019 The underwater wet welding (UWW) technology is rapidly developing as a crucial method in the maintenance work of marine equipment and offshore platform.
Ning Guo +5 more
doaj +1 more source