Zgrzewanie materiałów niejednorodnych w rozjazdach kolejowych

Tasak, E.; Ziewiec, Aneta; Lech, Sebastian; Malik, Maciej; Kubic, Jarosław

doi:10.26628/ps.v85i11.181

Cited by 3 publications

(5 citation statements)

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“…in order to enhance the steel strength the different processes should be employed for pipeline materials like alloy addition such as mn, Si and b form a solid solution with iron, strengthening the ferrite. bainitic and martensitic phase transformation also improve the strength of hSLa pipeline steels [3,6]. TabLe 2 represents the mechanical behaviour of different aPi steel grades.…”

Section: Properties Of Steel Designed To Be Used For Gas Pipeline Con...mentioning

confidence: 99%

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Archives of Metallurgy and Materials

2022

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EffEct of Physico-chEmical ProPErtiEs of submErgEd arc WElding fluxEs on PiPElinE stEEl -a briEf rEviEWPipeline welding is an integral part of oil and gas exploration industries. often the welded joint failures were due to lack of weld quality, improper heat treatment and even poor workmanship. Further, the use of new material in pipeline industry puts focus on a better understanding of qualifying requirements of welding for reducing the failures in future. This necessitates the need for development and design of suitable welding fluxes for joining these materials. in this paper an attempt is made to study the effects of submerged arc welding fluxes on weldability as well as structural integrity issues in pipeline steels. Physicochemical and thermophysical properties of submerged arc fluxes widely affects the mechanical behaviour of pipeline steels. This paper presents an overview of the role of welding parameters, flux composition, cooling rate, slag behaviour and physicochemical properties of slag on final welded joint properties such as tensile strength, impact toughness etc. during submerged arc welding.

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Section: Properties Of Steel Designed To Be Used For Gas Pipeline Con...mentioning

confidence: 99%

“…For this, vanadium was replaced by molybdenum, strong carbide former and the very effective strengthening agent was added. The high effectiveness of molybdenum along with the use of niobium allows for strong alloy [3]. Fig.…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

2022

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“…Inside the grains there are mainly NbCrN and MX phases, whereas on grain boundaries and partially inside the grains there are M 23 C 6 carbides present. During long-time work in high temperature a brittle σ phase may start to precipitate, with negatively influence the mechanical properties [5,7].…”

Section: Introductionmentioning

confidence: 99%

“…Austenitic steels are steels with a good weldability. However, the technological process of welding should be conducted in such a way that prevents: susceptibility of the welded joint to intercrystalline corrosion, creation of hot crackings and occurrence of brittleness resulting from precipitation of intermetallic phases as a result of high temperatures [2,3,[5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Tests of Welded Joints of New Generation Austenitic, Stainless Steel HR3C

Lalik

2015

SSP

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The paper presents the characteristics of a new generation of austenitic stainless HR3C also used on items of equipment operating at elevated temperatures. Changed welding technology and the results of metallographic and mechanical properties of joints. Developed and implemented welding technology made it possible to obtain high-quality connectors, the correct construction of the required structural and mechanical properties.

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“…The results of the structure research, microhardness, cyclic and static properties of the 1.4539 austenic steel welded by TIG method and CO 2 laser in helium atmosphere by various beam density were introduced in this paper. Despite quite wide range of usage, the publications about properties of this material are very limited [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%