Experimental Evaluation of the Influence of Mechanical Properties of Contacting Materials on Gas Abrasive Wear of Steels in Sandblasting Systems

Krupicz, B.; Tarasiuk, Wojciech; Barsukov, V. G.; Sviridenok, A. I.

doi:10.3103/s1068366620010110

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…The dominant martensitic structure of the steel is not conducive to good weldability. In order to obtain a proper and high-quality joint, it is necessary to very precisely determine all welding parameters: current, arc voltage, welding speed, beveling method, type of electrode wires and gas mixtures (Silva et al, 2019;, Krupicz et al, 2020). Welding of 960 MC steel is even more complicated compared to 700 MC steel due to the higher carbon and titanium content to strengthen the parent material.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2022

SPSUTOM

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Section: Introductionmentioning

confidence: 99%

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2022

SPSUTOM

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“…However, no explicit welding process-related guidelines have been developed for 6 mm, 8 mm and 10 mm thick plates made of steel DOCOL 1200M. Important aspects may include the manner of the bevelling of plates, welding sequence-related current-voltage parameters, types of electrode wires and shielding gases as well as welding rates [10][11][12]. The dr hab.…”

Section: Introductionmentioning

confidence: 99%

MAG Welding of Structures Used in Means of Transport and Made of Steel DOCOL 1200M

Szczucka-Lasota¹,

Węgrzyn²,

Łazarz³

et al. 2020

eBIS

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Steels of the DOCOL group, characterised by high tensile strength and yield point, play an important role in the manufacturing of means of transport. However, the above-named steels are difficult to weld and joints made in them do not guarantee comparable mechanical properties. The research work discussed in the article aimed to determine process parameters suitable for the welding of a moving platform made of steel DOCOL 1200M as well as to assess the effect of welding parameters on the quality of obtained joints. The tests also involved analysing the effect of shielding gases, preheating and interpass temperature on the quality of an 8 mm thick MAG welded moving platform structure.

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Welding of P355NH steel for the construction of a medium-pressure gas pipeline

Szczucka-Lasota,

Węgrzyn,

Szymczak

et al. 2023

Continuum Mech. Thermodyn.

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There is an increasing demand for welding of steel pipes meant for pressure purposes. P355NH (1.0473) steel became an important construction material used for structuring and restructuring of a medium-pressure gas pipeline due to its properties, such as significant tensile strength at the level of 600 MPa and increased yield point. These properties ensure appropriate service life of the principal pipeline structures. When welding P355NH steel, processes that enable high-quality welds without significant changes in the chemical composition of the base material, are applied. It is recommended to use the TIG welding process to produce joints, although P355NH steel joints are considered as difficult to weld. During welding, various welding defects might appear, which mainly include sticking and lack of fusion. Creation of joints with the desired properties, including those used in the construction of medium pressure gas pipelines, with the required class B quality, requires selection of appropriate parameters and compliance with the welding process practice. This is very important for the service life of the structure. Therefore, the article aims to select the most appropriate parameters and thermodynamic conditions for welding P355NH steel in order to obtain the best mechanical properties. The most important of the tested welding parameters of P355NH steel is welding speed, welding current, preheating temperature, interpass temperature and, above all, the role of various shielding gases. (Three different shielding gases containing argon and helium additives were tested.) The obtained joints were tested by: non-destructive tests, such as VT—visual examination; MT—magnetic particle testing, PT—penetration tests, UT—ultrasonic testing and by the destructive methods, such as tensile strength, impact toughness, bending test, light microscopy and scanning electron microscopy. The cause-and-effect relationships between the obtained joint structure and its mechanical properties were determined. The considerations were supported by the nucleation model and the mechanisms of formation of the acicular ferrite phase in the joint material. The chosen parameters of TIG process allow to obtain joint with adequate strength for the production of the gases pipeline, without welding defects. The results have a practical implication, the developed production technology for the obtaining the joints. The presented solution gives the possibility of producing correct welded joints, which can be used in the responsible steel construction. The originality of manuscript is the presentation the newly, uncomplicated solution of obtaining joint with good mechanical properties included the thin-walled tubular structure with a thickness of 3.6 mm. A novelty in the article is a clear indication of the importance of detailed thermodynamic welding conditions and obtained weld structure on the mechanical properties of the P355NH steel joint, which lead to the formation of various non-metallic titanium inclusions, which have a decisive impact on the mechanical properties of the joint, especially its strength and impact strength.

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Experimental Evaluation of the Influence of Mechanical Properties of Contacting Materials on Gas Abrasive Wear of Steels in Sandblasting Systems

Cited by 5 publications

References 3 publications

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MAG Welding of Structures Used in Means of Transport and Made of Steel DOCOL 1200M

Welding of P355NH steel for the construction of a medium-pressure gas pipeline

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