Process Stability, Microstructure and Mechanical Properties of Underwater Submerged-Arc Welded Steel
In underwater wet welding, the unstable welding process caused by the generation and rupture of bubbles and the chilling effect of water on the welding area result in low quality of welded joints, which makes it difficult to meet the practical ...
Maofu Zhang +5 more
doaj +1 more source
Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
wiley +1 more source
Welding tool oscillator for wet underwater welding apparatus
У статті розглянуто конструкцію механізму подачі порошкового дроту в автоматі для зварювання під водою мокрим способом з оригінальним пристроєм для коливання електродного дроту для забезпечення суцільного шва за наявності негарантованих по ширині зазорів в умовах просторового обмеження.
Volodymyr Lebedev, Serhii Loi
openaire +3 more sources
Fatigue life of underwater wet welded low carbon steel SS400
Underwater welding is widely used for maintenance and repairs of underwater structures such as undersea pipes, offshore structures and nuclear power plants.
N. Muhayat +4 more
doaj +1 more source
Friction stir welding is a solid-state welding method that produces joints with superior mechanical and metallurgical properties. However, the negative effects of the thermal cycle during welding dent the mechanical performance of the weld joint.
R. Suryanarayanan +6 more
doaj +1 more source
Study of particulate emissions when using special wires for underwater welding [PDF]
The article describes the study to evaluate the emissions to atmospheric air of airborne nano- and microparticles generated during underwater welding in seawater from Ajax Bay (Sea of Japan) using special wires and coated electrodes.
Chernousov Vladimir +8 more
doaj +1 more source
Effect of Water Flow on Underwater Wet Welded A36 Steel
Underwater wet welding (UWW) combined with the shielded metal arc welding (SMAW) method has proven to be an effective way of permanently joining metals that can be performed in water. This research was conducted to determine the effect of water flow rate
Eko Surojo +5 more
doaj +1 more source
Underwater welding has proven to be a successful method of joining two similar or dissimilar metals and takes place underwater. This technique is frequently used for maintenance purposes, such as repairing piping systems, ships, and other marine ...
Eko Surojo +8 more
doaj +1 more source
An optimal trajectory control strategy for underwater welding robot
The underwater welding robots are replacing humans in several harsh working environments however further strategies are required to achieve better control of robotic motion in order to extend their utility. This paper presents a smooth trajectory control
Lintao XIANG, Xiaopeng XIE, Xiaohui LU
doaj +1 more source
Effect of the water depth on the hydrogen content in SMAW wet welded joints
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

