Flux cored arc welding of 304L stainless steel within glycerol environment

Zhang, Xin; Guo, Ning; Xu, Cheng; Tan, Yanbo; Chen, Hao; Zhang, Di

doi:10.1016/j.jmatprotec.2020.116729

Cited by 8 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They are used as the elements of many welded structures, e.g., bridges, wind farms, and building skeletons [2,3]. Additionally, HSLA steels are the most often used materials for marine and offshore structures, which are in direct contact with water, e.g., ships, wharfs, pipelines, and tanks [4]. These structures may undergo damage that has to be repaired in underwater conditions [5,6].…”

Section: Introductionmentioning

confidence: 99%

Weldability of Underwater Wet-Welded HSLA Steel: Effects of Electrode Hydrophobic Coatings

Tomków

2021

Materials

View full text Add to dashboard Cite

The paper presents the effects of waterproof coatings use to cover electrodes on the weldability of high-strength, low-alloy (HSLA) steel in water. With the aim of improving the weldability of S460N HSLA steel in water, modifications of welding filler material were chosen. The surfaces of electrodes were covered by different hydrophobic substances. The aim of the controlled thermal severity (CTS) test was to check the influence of these substances on the HSLA steel weldability in the wet welding conditions. The visual test, metallographic tests, and hardness Vickers HV10 measurements were performed during investigations. The results proved that hydrophobic coatings can reduce the hardness of welded joints in the heat-affected zone by 40–50 HV10. Additionally, the number of cold cracks can be significantly reduced by application of waterproof coatings on the filler material. The obtained results showed that electrode hydrophobic coatings can be used to improve the weldability of HSLA steel in underwater conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Weldability of Underwater Wet-Welded HSLA Steel: Effects of Electrode Hydrophobic Coatings

Tomków

2021

Materials

View full text Add to dashboard Cite

show abstract

“…Water causes instability of welding arc and reduction of the quality of the welded joints [8,9]. Zhang et al [10] proved that unstable welding arc generates problem with droplet transition, which may cause geometric shape imperfections. Zhang et al [11] in their next research performed experiments, which showed the possibility of increasing the stability of the welding arc by selecting the appropriate parameters.…”

Section: Introductionmentioning

confidence: 99%

Effect of Electrode Waterproof Coating on Quality of Underwater Wet Welded Joints

Tomków

Fydrych

Wilk³

2020

Materials

View full text Add to dashboard Cite

In this paper, the effects of different hydrophobic coatings on the surface of covered electrodes on the quality of wet welded carbon steel joints were discussed. Commonly available hydrophobic substances used in industrial applications were selected for the research. The aim of using waterproof coatings was to check the possibility to decreasing the susceptibility of high-strength low-alloy S460N steel to cold cracking. During experiments diffusible hydrogen content in deposited metal determination by mercury method, metallographic macro- and microscopic testing and hardness measurements were performed. Investigations showed that waterproof coatings laid on covered electrodes can improve the quality of wet welded joints, by decreasing the Vickers HV10 hardness in heat-affected zone and decreasing the diffusible hydrogen content in deposited metal, which minimalize possibility of cold cracking.

show abstract