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Resistance against mechanical and corrosion-mechanical failure of welded joint of X70 steel with advanced viscous properties

L.I. Nyrkova et al · Vasyl Stefanyk Carpathian National University · 2025

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Author / responsible party
L.I. Nyrkova et al
Publisher
Vasyl Stefanyk Carpathian National University
Year
2025
ISSN
1729-4428
ISSN
1729-4428
Language
English

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An arc welding method under flux for the controllable rolling of X70 steel for main gas pipelines, which improves the viscosity of the welded joint and resistance against stress-corrosion cracking (SCC) under cathode protection, was developed. The impact toughness of the weld at temperatures minus 40°C was KCV-40 = 189.0 J/cm2 versus KCV-40 = 117.1 J/cm2 for the base metal. The corrosion rates and electrochemical properties of different zones of the welded joint were determined, and their stress-corrosion cracking susceptibility in the NS4 medium was investigated using voltammetry, the slow strain rate method, and scanning electron microscopy.

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APA 7

al, L. N. E. (2025). Resistance against mechanical and corrosion-mechanical failure of welded joint of X70 steel with advanced viscous properties. https://doi.org/10.15330/pcss.26.4.794-801

MLA

al, L.I. Nyrkova et. "Resistance against mechanical and corrosion-mechanical failure of welded joint of X70 steel with advanced viscous properties." 2025. https://doi.org/10.15330/pcss.26.4.794-801.

Chicago

al, L.I. Nyrkova et. 2025. "Resistance against mechanical and corrosion-mechanical failure of welded joint of X70 steel with advanced viscous properties.". https://doi.org/10.15330/pcss.26.4.794-801.

Harvard

al, L. N. E. 2025, Resistance against mechanical and corrosion-mechanical failure of welded joint of X70 steel with advanced viscous properties, Vasyl Stefanyk Carpathian National University, available at: https://doi.org/10.15330/pcss.26.4.794-801 [Accessed 8 Aug. 2026].

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Title
Resistance against mechanical and corrosion-mechanical failure of welded joint of X70 steel with advanced viscous properties
Author / contributors
L.I. Nyrkova et al
Publisher
Vasyl Stefanyk Carpathian National University
Publication year
2025
ISSN
1729-4428
ISSN
1729-4428
Language
English

Subjects

Explore related resources through these subjects.

х70 steel; welded joint; slow strain tests; masometry; voltammetry; optical microscopy; corrosion; stress-corrosion cracking; scanning electron microscopy
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