The Paton Welding Journal, 2003, №02

2003 №02 (04)

2003 №02 (06)

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The Paton Welding Journal, 2003, #2, 22-25 pages

Intercrystalline corrosion resistance of austenitic deposited metal microalloyed with REM

N.G. Efimenko¹, S.V. Nesterenko²

¹Ukrainian Engineering-Pedagogical Academy, Kharkiv, Ukraine
²Kharkiv State Academy of Municipal Services, Kharkiv, Ukraine

Abstract
Investigations were performed of the influence of microalloying chromium-nickel deposited metal of 18-10 type with yttrium and cerium oxide on its intercrystalline corrosion resistance. A positive role of modifying by cleaning the crystal boundaries and more favorable distribution of intermetallic inclusions is demonstrated.
Keywords: chromium-nickel-molybdenum austenitic de¬posited metal, rare-earth metals, microalloying, corrosion resistance, carbon diffusion, intercrystalline corrosion, non-metallic inclusions, grain boundaries, chemical microinhomogeneity, heat treatment, chromium carbides

References

1. Lazebnov, P.P., Aleksandrov, A.G. (1988) Influence of modification on structure and properties of 12Khl8N10T steel welded joints metal. Svarochn. Proizoodstoo, 6, 33−36.
2. Nesterenko, S.V., Efimenko, LG. (1990) Increase of corrosion resistance in acid media of austenitic deposited metal by complex alloying with rare-earth metals. Ibid., 10, 19−21.
3. Efimenko, N.G., Balan, L.N. (1988) Effect of yttrium on hydrogen diffusion in welded joints. Ibid., 7, 32−36.
4. Efimenko, N.G. (1990) On the mechanism of effect of rareearth metals on solidification process and formation of primary weld structure in welding of steel. Ibid., 7, 38−34.
5. Medvedeva, P.A., Knyazheva, V.M., Kolotyrkin, Ya.M. et al. (1975) Electrochemical method of quantitative evaluation of stainless steels susceptibility to intercrystalline corrosion. Zashchita Metalloo, 6, 699−705.
6. Nuji, Y., Ohashi, T., Hiromoto, T. et al. (1980) Solidification microstructure of ingots and continuously cast slabs treated with rare-earth metal. Tetsu-to-Hagane, 6, 618−627.
7. Efimenko, N.G., Balan, L.N., Bakakin, G.N. (1985) Influence of yttrium on weld metal structure in fusion welding. Svarochn. Proizvodstvo, 4, 19−21.

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Suggested Citation

N.G. Efimenko, S.V. Nesterenko (2003) Intercrystalline corrosion resistance of austenitic deposited metal microalloyed with REM. The Paton Welding J., 02, 22-25.

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