Cold Cracking Of Underwater Wet Welded S355G10+N High Strength Steel

@article{Fydrych2015ColdCO,
  title={Cold Cracking Of Underwater Wet Welded S355G10+N High Strength Steel},
  author={Dariusz Fydrych and Jerzy Łabanowski and Jacek Tomk{\'o}w and Grzegorz Rogalski},
  journal={Advances in Materials Science},
  year={2015},
  volume={15},
  pages={48 - 56}
}
Abstract Water as the welding environment determines some essential problems influencing steel weldability. Underwater welding of high strength steel joints causes increase susceptibility to cold cracking, which is an effect of much faster heat transfer from the weld area and presence of diffusible hydrogen causing increased metal fragility. The paper evaluates the susceptibility to cold cracking of the high strength S355G10+N steel used, among others, for ocean engineering and hydrotechnical… 

Figures and Tables from this paper

Temper Bead Welding of S460N Steel in Wet Welding Conditions
Abstract Wet welding is the most common method of welding in water environment. It is most often used for repairing of underwater parts of offshore structures. However, the water as a welding
Cold Cracking of S460N Steel Welded in Water Environment
Abstract This paper shows results of weldability testing of fine-grained high-strength low-alloy S460N steel welded in water environment by covered electrodes. The tests were carried out by using the
Cold Cracking Susceptibility of Joints made of Ferritic-‑Austenitic Duplex Steel 2205 during Underwater Wet Welding
The underwater welding of ferritic-austenitic duplex steels is arousing growing interest inspired by the urgent need for developing welding technologies used for repairing underwater pipelines
Weldability of S460ML High Strength Low Alloy Steel in Underwater Conditions
The paper presents experimental evaluation of susceptibility of the high strength S460ML steel to cold cracking in the conditions of wet welding with the use of covered electrodes. From the results
Weldability testing of S460N steel in water environment by using Tekken test
Welding in a water environment carries out a lot of problems, among which the most important could be the susceptibility of steel to cold cracking. There are many methods to prevent these cracks
Post Underwater Wet Welding Heat Treatment by Underwater Wet Induction Heating
Wet welding procedures of Class A structural ship steels frequently fail to comply with the American Welding Society (AWS) D3.6M, Underwater Welding Code, in the maximum hardness criterion for the
Mechanical and Microstructural Properties of A36 Marine Steel Subjected to Underwater Wet Welding
Underwater wet welding (UWW) is applied to repair basic offshore structures, underwater pipelines, water transportation, docks, and port equipment. The underwater wet welding method used in the
Underwater In Situ Local Heat Treatment by Additional Stitches for Improving the Weldability of Steel
In this paper the influence of in situ local heat treatment performed by additional stitches on the weldability of high-strength low-alloy (HSLA) S355J2C+N steel was tested. The investigated steel is
Weldability of S700MC steel welded with the hybrid plasma + MAG method
The paper describes the microstructure of welded joints produced by the plasma+MAG (Metal Active Gas) method of S700MC high yield strength steel (700 MPa). Welded joints of thermomechanical steel
Underwater Local Cavity Welding of S460N Steel
TLDR
The performed tests showed that the tensile strength of the joints manufactured in water (567 MPa) could be similar to the air welded joint (570 MPa), and that in the case of a complex state of stress, for example, bending, torsional and tensile stresses, the welding imperfections significantly decrease the properties of the weldinged joint.
...
1
2
3
...

References

SHOWING 1-10 OF 19 REFERENCES
Weldability of high strength steels in wet welding conditions
Abstract In this paper are characterized problems of high strength steel weldability in underwater wet welding conditions. Water as a welding environment intensifies action of unfavourable factors
Weldability of S500MC Steel in Underwater Conditions
Abstract Wet welding with the use of covered electrodes is one of the methods of underwater welding. This method is the oldest, the most economic and the most versatile. The main difficulties during
Underwater arc welding of higher strength low-alloy steels
Welding is used extensively in the construction and repair of underwater pipelines. Recently, the volume of application of underwater welding in these operations has been expanded considerably. This
Underwater Wet Welding for HSLA Steels: Chemical Composition, Defects, Microstructures, and Mechanical Properties
The effect of water depth on underwater wet welds was investigated by underwater wet shielded metal-arc welding technique. The microstructures, chemical composition, welding defects, and mechanical
Underwater welded joint properties investigation
Underwater welded joint properties investigation Macroscopic and microscopic examinations of implant joints made under water have been performed. The investigations results indicate that in HAZ of
Preliminary Investigation on Real Time Induction Heating Assisted Underwater Wet Welding
A novel real­time induction heating­assisted underwater wet welding process was investigated. The addition of induction heating could reduce the cooling rate of the joint in underwater wet welding.
Optimization of underwater wet welding process parameters using neural network
BackgroundThe structural integrity of welds carried out in underwater wet environment is very key to the reliability of welded structures in the offshore environment. The soundness of a weld can be
Analysis of Underwater Repair Technology on the Jack-Up Platform Spud Can
Underwater welding has been used widely in construction and maintenance of off-shore facilities. With state-of-the-art equipment and filler materials it is possible to achieve high quality of welded
...
1
2
...