Influencing the arc and the mechanical properties of the weld metal in GMA-welding processes by additive elements on the wire electrode surface

Wesling, Volker; Schram, A.; Müller, Toni; Treutler, Kai

doi:10.1088/1757-899x/118/1/012006

Cited by 15 publications

(8 citation statements)

References 3 publications

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“…The filler metal was wrapped around an existing cage-like structure and then coated by magnetron-assisted sputtering as shown in Fig. 1, like shown in preliminary studies [6,10,11]. It was shown in these preliminary studies that the filler metal can be coated almost uniformly around the entire circumference.…”

Section: Modification Of Filler Materialsmentioning

confidence: 95%

“…The base materials used for the study are a waterquenched and tempered fine-grained structural steel (S690QL), state of the art, and a thermomechanical rolled fine-grained structural steel (S700MC). Both materials were used in previous studies [6,12].…”

Section: Base Materialsmentioning

confidence: 99%

“…The use of nanoparticles on the welding filler surface is also currently being investigated for the modification of the weld metal properties and the arc [5]. Besides the application of nanoparticles on the filler surface, a complete surface coating on the filler surface can be applied by magnetron sputtering to influence the surface tension and flowability of the melt as well as the mechanical properties of the weld metal and the arc [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…By surface coating the filler with magnetron sputtering, the surface tension of the melt and the arc characteristics could be significantly modified [6]. This effect is now to be exploited to achieve a targeted increase in the strength of welded joints.…”

Section: Introductionmentioning

confidence: 99%

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Usage of Ti-surface-modified filler material to increase the joint strength of High-Strength Low Alloyed (HSLA) steels under different load types

Treutler

Wesling

2020

SN Appl. Sci.

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Welding-related loss of strength, especially in the case of fatigue, significantly reduces the range of applications for high-strength fine-grained structural steels. In order to counteract this situation, the aim of the work is to increase the strength of welded joints made of high-strength fine-grained structural steels by using coated welding consumables. This is described using the example of a titanium coating for quasi-static and abrupt dynamic load and fatigue. The thermomechanical rolled fine-grained structural steel S700MC is used as the base material, using a welding filler of the same type. MAG welding was used to produce the fillet welds on a T-joint. In addition to tensile tests at four different load speeds up to 2 m/s, the results of fatigue tests are presented. In addition, the microstructure of the weld seams is examined by metallographic methods and the scanning electron microscope. A comparison with two joints from an unmodified variant and another steel grade with comparable properties (S690QL) serves to classify the results. It is shown that the use of modified filler metals has a significant influence on the overall strength of the welded joint due to the rounding of the weld toe. Thus, the fatigue strength can be increased by around 50%. In addition, the strength under sudden dynamic load can be increased by 10%.

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Section: Modification Of Filler Materialsmentioning

confidence: 95%

Section: Base Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Usage of Ti-surface-modified filler material to increase the joint strength of High-Strength Low Alloyed (HSLA) steels under different load types

Treutler

Wesling

2020

SN Appl. Sci.

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“…Currently, noncopper-coated solid wires mainly uses nanomaterials as surface coating. Wesling et al [7] studied the in uence of the surface coating elements of the welding wire on the mechanical properties of the arc and weld metal. Cr coating caused of arc length shortening and the tensile strength increased by 44%, and the fatigue strength of the weld metal with Cr and Ti coatings also signi cantly increased.…”

Section: Introductionmentioning

confidence: 99%

High Temperature Tribological Performance of Steel/Copper Friction Pairs Lubricated With a Modified C-WS2-(Fe3O4+TiN) Nanoadditives in Non-Copper Coated Solid Wires

Zhu

et al. 2021

Preprint

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In this study, four kinds of nanoparticles: graphite, WS2, Fe3O4 and TiN were used as lubricating additives for steel/copper friction pairs to solve the problem of welding contact tube wear with non-copper-coated solid wire at high temperature. The single and composite nanoparticles have excellent dispersion stability in absolute ethanol under the action of the compound surfactant NaSTA+OA+PVP. The tribological test results showed that the maximum decrement with reference to the average coefficient of friction and wear volumes were measured with nanoparticle concentration in 1:1:1 ratio at 300℃. Compared with dry friction, the average friction coefficient and wear volume are reduced by 74.3% and 84.8%, respectively, which may be attributed to the formation of a stable tribo-film mainly composed of C-O, Fe2O3, WO3, TiO2, TiNxOy composite on the worn surface. Therefore, it is considered that the combined lubrication effects of the ball-bearing effect, repairing of worn surfaces and the tribo-film resulted in the lowest friction and wear.

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Targeted influence on the weld strength of high-strength fine-grain structural steels in the GMA welding process through functionalized weld material surfaces

2019

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Influencing the arc and the mechanical properties of the weld metal in GMA-welding processes by additive elements on the wire electrode surface

Cited by 15 publications

References 3 publications

Usage of Ti-surface-modified filler material to increase the joint strength of High-Strength Low Alloyed (HSLA) steels under different load types

Usage of Ti-surface-modified filler material to increase the joint strength of High-Strength Low Alloyed (HSLA) steels under different load types

High Temperature Tribological Performance of Steel/Copper Friction Pairs Lubricated With a Modified C-WS2-(Fe3O4+TiN) Nanoadditives in Non-Copper Coated Solid Wires

Targeted influence on the weld strength of high-strength fine-grain structural steels in the GMA welding process through functionalized weld material surfaces

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