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ArticleName Welding of CuNiFe 5-1 alloy with austenite nitrogenous steel
DOI 10.17580/tsm.2015.04.07
ArticleAuthor Vaynerman A. A., Vaynerman A. E.

Central Research Institute of Structural Materials “Prometey”, Saint Petersburg, Russia:

A. A. Vaynerman, First Category Engineer, e-mail:
A. E. Vaynerman, Head of a Sector


Nowadays, new austenite nitrogenous steel (Fe – Cr – Ni – Mn – N composition) is more applied to manufacturing of sea technical equipment structures, which obtaining requires copper alloy welding with this steel. Copper alloy welding with new austenite nitrogenous steel has the following peculiarities: eventual boiling of weld pool; nitrogen emission; formation of cracks in steel; partially contained copper alloy and formation nitrides in weld metal. Application of sublayer, cladded by EW-263ESR wire on this steel, together with scraping of base metal and acid-etching of filler metal, are necessary for receiving of qualitative welded joints of copper alloys with new austenite nitrogenous steel. Optimum conditions of TIG-welding deposition of sublayer, cladded by EW-263ESR wire on the steel was researched and installed together with amount of cladded layers of this sublayer metal, its optimum composition and metal structure, providing the absence of cracks and other defects, values of tensile strength and impact strength at steel level. There is shown the necessity of second sublayer, cladded by CuNiFeSiTi 5-1-0,2-0,2 wire on sublayer, cladded by EW-263ESR wire on Cr – Ni – Mn – N composition. On the basis of these researches, there was developed the process of TIG-welding of CuNiFe 5-1 grade alloy with new austenite nitrogenous steel composition thickness up to 15 mm grade, providing the quality of weld, tensile strength (CuNiFe 5-1 grade alloy) and high values of impact strength.

keywords TIG, nitrogenous steel, austenite, copper alloys, sublayer, δ-ferrite, crack resistance, quality, mechanical properties

1. Gorynin I. V., Malyshevskiy V. A., Kalinin G. Yu., Mushnikova S. Yu., Bannykh O. A., Blinov V. M., Kostina M. V. Korrozionno-stoykie vysokoprochnye azotistye stali (Corrosion-resistance high-strength nitrous alloys). Voprosy materialovedeniya = Inorganic Materials: Applied Research. 2009. No. 3 (59). pp. 7–16.
2. Kalinin G. Yu., Mushnikova S. Yu., Nesterova E. V., Fomina O. V., Kharkov A. A. Issledovaniya struktury i svoystv vysokoprochnoy korrozionno-stoykoy azotistoy stali 04Kh20N6G11M2AFB (Research of structure and properties of high-strength corrosion-resistance nitrous steel 04Kh20N6G11M2AFB (04Х20Н6Г11М2АФБ)). Voprosy materialovedeniya = Inorganic Materials: Applied Research. 2006. No. 1 (45). pp. 45–54.
3. Sitnik B. A., Konkov Yu. D., Timofeev V. N. Vybor podsloya pri naplavke poverkhnostno-aktivnykh mednykh splavov na stali austenitnogo klassa (Underlayer choice during cladding of surface-active copper alloys on austenite steel). Tekhnologiya sudostroeniya = Shipbuilding technology. 1976. No. 3. pp. 74–77.
4. Sitnik B. A., Konkov Yu. D. Osobennosti vzaimodeystviya poverkhnostnoaktivnykh rasplavov mednykh splavov so stalyami austenitno-ferritnogo klassa pri naplavke (Peculiarities of interaction of surface-active melts of copper alloys with austenite-ferrite steels during cladding). Tekhnologiya sudostroeniya = Shipbuilding technology. 1978. No. 3. pp. 24–26.
5. Sitnik B. A., Konkov Yu. D., Vaynerman A. E. Ob otsenke sklonnosti staley k proniknoveniyu rasplavov mednykh splavov (About assessment of steel inclination to copper alloy melt entry). Svarochnoe proizvodstvo = Welding industry. 1975. No. 6. pp. 29–30.
6. Vaynerman A. A., Vaynerman A. E., Veretennikov M. M. Nekotorye osobennosti argonodugovoy svarki mednykh splavov s azotistoy austenitnoy stalyu marki 04Kh20N6G11M2AFB (Some peculiarities of argon-arc welding of copper alloys with nitrogen austenite steel 04Kh20N6G11M2AFB (04Х20Н6Г11М2АФБ)). Voprosy materialovedeniya = Inorganic Materials: Applied Research. 2013. No. 4 (76). pp. 108–122.
7. John C. Lippold, Damian J. Kotecki. Metallurgiya svarki i svarivaemost nerzhaveyushchikh staley (Welding Metallurgy and Weldability of Stainless Steels). Saint Petersburg : Publishing House of Polytechnical University, 2011. 467 p.
8. Zaks I. A. Novyy sposob soedineniya medi i mednykh splavov so stalyu (New way of connection of copper and copper alloys with steel). Leningrad : LDNTP, 1969. 29 p.
9. GOST 14771–76. Dugovaya svarka v zashchitnom gaze. Soedineniya svarnye. Osnovnye tipy, konstruktivnye elementy i razmery (State Standard 14771-76. Arc welding in protective gas. Welding compounds. Basic types, construction elements and sizes). Introduced: 1997–07–01. (in Russian).

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