Details
| Original language | English |
|---|---|
| Article number | 1269 |
| Journal | SN Applied Sciences |
| Volume | 2 |
| Issue number | 7 |
| Early online date | 23 Jun 2020 |
| Publication status | Published - Jul 2020 |
Abstract
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 welding. The welding is carried out in a simulated water depth of 5, 20, 40, and 60 m with four stick electrodes specifically developed for underwater wet welding. The influence of the welding current, the arc voltage and the electrode’s composition on the diffusible hydrogen content are considered. To obtain reproducible welding conditions, a fully automated multi-axis welding system is used inside a pressure chamber. The water depth is simulated by setting the internal pressure up to 6 bar, equivalent to 60 m water depth. A large amount of samples are analysed and statistical method are used to evaluate the results. The results show a significant reduction of the diffusible hydrogen and an increase of residual hydrogen in the joining zone with increasing water depth.
Keywords
- Diffusible hydrogen, Hydrogen induced cracking (HIC), Residual hydrogen, Shielded metal arc welding (SMAW), Water depth, Wet welding
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
- Environmental Science(all)
- General Environmental Science
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- General Physics and Astronomy
- Chemical Engineering(all)
- General Chemical Engineering
- Earth and Planetary Sciences(all)
- General Earth and Planetary Sciences
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: SN Applied Sciences, Vol. 2, No. 7, 1269, 07.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Effect of the water depth on the hydrogen content in SMAW wet welded joints
AU - Klett, Jan
AU - Hecht-Linowitzki, Vitali
AU - Grünzel, Oliver
AU - Schmidt, Emily
AU - Maier, Hans Jürgen
AU - Hassel, Thomas
N1 - Funding Information: Open Access funding provided by Projekt DEAL.
PY - 2020/7
Y1 - 2020/7
N2 - 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 welding. The welding is carried out in a simulated water depth of 5, 20, 40, and 60 m with four stick electrodes specifically developed for underwater wet welding. The influence of the welding current, the arc voltage and the electrode’s composition on the diffusible hydrogen content are considered. To obtain reproducible welding conditions, a fully automated multi-axis welding system is used inside a pressure chamber. The water depth is simulated by setting the internal pressure up to 6 bar, equivalent to 60 m water depth. A large amount of samples are analysed and statistical method are used to evaluate the results. The results show a significant reduction of the diffusible hydrogen and an increase of residual hydrogen in the joining zone with increasing water depth.
AB - 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 welding. The welding is carried out in a simulated water depth of 5, 20, 40, and 60 m with four stick electrodes specifically developed for underwater wet welding. The influence of the welding current, the arc voltage and the electrode’s composition on the diffusible hydrogen content are considered. To obtain reproducible welding conditions, a fully automated multi-axis welding system is used inside a pressure chamber. The water depth is simulated by setting the internal pressure up to 6 bar, equivalent to 60 m water depth. A large amount of samples are analysed and statistical method are used to evaluate the results. The results show a significant reduction of the diffusible hydrogen and an increase of residual hydrogen in the joining zone with increasing water depth.
KW - Diffusible hydrogen
KW - Hydrogen induced cracking (HIC)
KW - Residual hydrogen
KW - Shielded metal arc welding (SMAW)
KW - Water depth
KW - Wet welding
UR - http://www.scopus.com/inward/record.url?scp=85088028931&partnerID=8YFLogxK
U2 - 10.1007/s42452-020-3066-8
DO - 10.1007/s42452-020-3066-8
M3 - Article
AN - SCOPUS:85088028931
VL - 2
JO - SN Applied Sciences
JF - SN Applied Sciences
IS - 7
M1 - 1269
ER -