| 2024 №03 (03) |
DOI of Article 10.37434/tdnk2024.03.04 |
2024 №03 (05) |
"Tekhnichna Diahnostyka ta Neruinivnyi Kontrol" (Technical Diagnostics and Non-Destructive Testing) #3, 2024, pp. 24-31
Causes of damage to a pipeline of AISI 316L steel
S.O. Osadchuk, L.I. Nyrkova, L.V. Goncharenko
E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: lnyrkova@gmail.comA damaged pipeline of stainless AISI 316L steel for cold water transportation, at a food industry enterprise after construction and stoppage for one year was investigated. A visual inspection of the specimens of welded joints of four pipes established that the pipes, mounted in a horizontal position, have the following welding defects in the lower part: weld irregularities, overlaps and metal leakage. It was shown that the welded pipe joints are durable against intergranular corrosion, and the base metal is resistant to pitting corrosion. The damage to the examined specimen of the welded pipe joint, which was confirmed by metallographic examinations, was caused by non-fusion of the weld with the base metal and partial penetration at the weld root, which led to through damages due to contact with residual water after hydraulic tests as a result of crevice corrosion. 17 Ref., 2 Tabl., 7 Fig.
Keywords: stainless steel, welded joint, potentiometry, optical microscopy, pitting corrosion, crevice corrosion
Received: 26.02.2024
Received in revised form: 29.04.2024
Accepted: 04.06.2024
References
1. DSTU 3830-98 Corrosion of metals and alloys. Terms and definitions of basic concepts [in Ukrainian].2. BS EN 12502-4:2004 Protection of metallic materials against corrosion – Guidance on the assessment of corrosion likelihood in water distribution and storage systems – Pt 4: Influencing factors for stainless steels.
3. Martins, C.M.B., Moreira J.L., Martins J.I. (2014) Corrosion in water supply pipe stainless steel 304 and a supply line of helium in stainless steel 316. Engineering Failure Analysis, 39, 65-71. https://doi.org/10.1016/j.engfailanal.2014.01.017
4. Degremont® water handbook. stainless steel. https://www.suezwaterhandbook.com/water-and-generalities/corrosion-in-metal-and-concrete/ corrosion-in-metallic-materials/stainless-steel.
5. DSTU EN 10088-1:2019 Stainless steels – Pt 1. List of stainless steels [in Ukrainian].
6. Sokol, I.Ya., Ulyanin, E.A., Feldgandler, E.G. et al. (1989) Structure and corrosion of metals and alloys: Atlas. Ref. ed. Moscow, Metallurgiya [in Russian].
7. DSTU EN ISO 3651-2:2005 Corrosion resistant steels. Determination of resistance to intergranular corrosion. Pt 2. Ferritic, austenitic and ferritic-austenitic (duplex) steels. Corrosion test in media containing sulfuric acid (EN ISO 3651-2:1998, IDT) [in Ukrainian].
8. GOST 9.912-89 Unified system of corrosion and protection ageing. Corrosion-resistant steels and alloys. Method of accelerated tests for resistance to pitting corrosion [in Russian].
9. EN 10088-2:2005 Stainless steels. Pt 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes.
10. ASTM A 240/A 240M-04 Standard specification for chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure vessels and for general applications.
11. DSanPiN 2.2.4-171-10 National sanitary standsrds and regulations. Hygienic requirements for drinking water intended for human consumption [in Ukrainian].
12. Tretjakova, O.I. (2013) Selected lectures on soil chemistry: Educational and methodological manual. Krasnodar [in Russian].
13. GOST 9.908-85 ESZKS Metals and alloys. Methods for determination of corrosion and corrosion-resistance indices [in Russian].
14. Kakhovsky, N.I. (1975) Welding of high-alloyed steels. Tekhníka [in Russian].
15. DSTU EN ISO 8249:2019 Welding. Determination of Ferrite Number (FN) in austenitic and duplex ferritic-austenitic Cr-Ni stainless steel weld metals (EN ISO 8249:2018, IDT; ISO 8249:2018, IDT) [in Ukrainian].
16. GOST 9.005-72 Unified system of protection against corrosion and aging. Metals, alloys, metallic and non-metallic inorganic coatings. Perimissible and imperimissible contacts with metals and non-metals [in Russian].
17. DSTU ISO 643:2009 (ISO 643:2003, IDT) Steels. Micrographic method of determining the apparent grain size [in Ukrainian].
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S.O. Osadchuk, L.I. Nyrkova, L.V. GoncharenkoCauses of damage to a pipeline of AISI 316L steel
Technical Diagnostics and Non-Destructive Testing №03 2024 p.24-31
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