Structural peculiarities and mechanical behavior of Fe-Mo-V-Nb-C steel after equal channel angular pressing

E.G. Astafurova, G.G. Zakharova, E.V. Naydenkin, G.I. Raab, P.D. Odessky, S.V. Dobatkin show affiliations and emails
Received 04 December 2011; Accepted 09 January 2012;
This paper is written in Russian
Citation: E.G. Astafurova, G.G. Zakharova, E.V. Naydenkin, G.I. Raab, P.D. Odessky, S.V. Dobatkin. Structural peculiarities and mechanical behavior of Fe-Mo-V-Nb-C steel after equal channel angular pressing. Lett. Mater., 2011, 1(4) 198-202
BibTex   https://doi.org/10.22226/2410-3535-2011-4-198-202

Abstract

 An ultrafine-grained low-carbon Fe-Mo-V-Nb-C steel with both coarse (70 nm) and fine (<5 nm) carbides was fabricated by equal channel angular pressing (ECAP). ECAP produces an ultrafine-grained microstructure in steel with an average (sub-)grain size of 325 nm, a microhardness of 3.3GPa and 0.2 pct offset yield strength of 815MPa. The microstructure was found to be stable up to 500 °C. The composition of the carbides, their sizes and their distribution in the microstructure before and after ECAP was analyzed in order to understand their contribution to the me-chanical properties and the thermal stability of the steel. The change in strength properties during ECAP was estimated taking into account the possible strengthening mechanisms of steel.

References (31)

1. R.Z. Valiev, I.V. Alexandrov. Bulk NanostructuredMetallic Materials, Moscow, IKC Akademkniga (2007)397 (in Russian).
2. M.J. Zehetbauer, R.Z. Valiev (Eds.). Nanomaterials bySevere Plastic Deformation, Vienna, Austria, Wiley-VCH (2002) 850.
3. T.C. Lowe and R.Z. Valiev (Eds). Investigations andApplications of Severe Plastic Deformation, Dordrecht, the Netherlands, Kluwer Academic Publishing (2000).
4. 4. Y. Weng. Ultra-Fine Grained Steels, Berlin, MetallurgicalIndustry Press, Beijing and Springer-Verlag GmbH(2009) 588.
5. K.T. Ramesh. Nanomaterials. Mechanics andMechanisms, Berlin, springer, (2009) 316.
6. S.V. Dobatkin, O.V. Vasil’eva, V.I. Kopylov, R. Pippan.Mater. Sci. Forum. 467-470, 1277 (2004).
7. Q. Wei, L. Kecskes, T. Jiao, K. T. Hartwig, K. T. Ramesh.Acta Mater. 52, 1859 (2004).
8. M. Sus-Ryszkowska, T. Wejrzanowski, Z. Pakiela, K. J.Kurzydlowski. Mater. Sci. Eng. A369, 151 (2004).
9. S.S. Hazra, A.A. Gazder, E.V. Pereloma. Mater. Sci. Eng.A524, 158 (2009).
10. S.V. Dobatkin, P.D. Odessky, S.V. Shagalina. Mater. Sci.Forum. 584-586, 623 (2008).
11. S.V. Dobatkin, P.D. Odessky, R. Pippan, G.I. Raab, N.A.Krasilnikov, A.M. Arsenkin. Nanomaterials by severeplastic deformation, ed. by Zehetbauer M.J., Valiev R.Z., Vienna, Austria, Wiley-VCH, 804 (2002).
12. Sh.M.L. Sastry, S.V. Dobatkin, S.V. Sidorova. Russianmetallurgy (Metally). 2, 129 (2004).
13. D.H. Shin, K.-T. Park. Mater. Sci. Eng. A410-411, 299(2005).
14. B. Hwang, S. Lee, Y.C. Kim, N.J. Kim, D.H. Shin. Mater.Sci. Eng. A441, 308 (2006).
15. D.H. Shin, I. Kim, J. KIM, K.-T. Park. Acta Mater. 49, 1285 (2001).
16. K.-T. Park, Y.-S. Kim, J.G. Lee, D. H. Shin. Mater. Sci.Eng. A293, 165 (2000).
17. K.-T. Park, D.H. Shin. Mater. Sci. Eng. A334, 79 (2002).
18. J.T. Wang, C. Xub, Z.Z. Duc, G.Z. Qua, T.G. Langdon.Mater. Sci. Eng. A410-411, 312 (2005).
19. J. Kim, I. Kim, D.H. Shin. Scripta Mater. 45, 421 (2001).
20. Y. Fukuda, K. Oh-ishi, Z. Horita, T.G. Langdon. ActaMater. 50, 1359 (2002).
21. K. Ohishi, Z. Horita, M. Furukawa, M. Nemoto, T.G.Langdon. Metall. Mater. Trans. A29, 2011 (1998).
22. S. Komura, M. Furukawa, Z. Horita, M. Nemoto, T.G.Langdon. Mater. Sci. Eng. A297, 111 (2001).
23. G.G. Zakharova, E.G. Astafurova, E.V. Naydenkin, G.I.Raab, S.V. Dobatkin. Mater. Sci. Forum. 667-669, 325(2011).
24. E.G. Astafurova, G.G. Zakharova, E.V. Naydenkin, G.A.Raab, S.V. Dobatkin. Phys. Met. and Metallography.111, 62 (2011).
25. L.R. Botvina, M.R. Tyutin, V.P. Levin, Y.A. Demina, I.A.Panteleev, S.V. Dobatkin. Mater. Sci. Forum 584-586, 281(2008).
26. P. Hirsch, A. Howie, R.B. Nicholson, D.W. Pashley, M.J. Whelan. Electron Microscopy of Thin Crystals, Huntington, New York, Krieger (1977) 362.
27. G.K. Williamson, R.E. Smallman. Phil. Mag. 1, 34 (1956).
28. R.Z. Valiev, Y.V. Ivanisenko, E.F. Rauch, B. Baudelet. ActaMater. 44, 4705 (1996).
29. G.G. Zakharova, E.G. Astafurova, M.S. Tukeeva, E.V.Naydenkin, S.V. Dobatkin, G.I. Raab. Russian PhysicsJournal. 4, 416 (2011) (in Russian).
30. N.I. Noskova, R.R. Mulyukov. Submicrocrystalline andnanocrystalline metals and alloys. Ekaterinburg, UrORAS (2003) 279 (in Russian).
31. M.I. Goldshtein, V.S. Litvinov, B.M. Bronfin.Metallophysics of high-strength alloys, Moscow, IKSMetallurgiya (1986) (in Russian).

Cited by (1)

1.
V. Sitdikov, G. Sitdikova, E. Khafizova, R. Islamgaliev. Lett. Mater. 11(4), 497 (2021). Crossref

Similar papers