Abstract
A nanocrystalline Fe-Ni matrix strengthened by dispersed CrN and TiN nitrides has been produced on the ion-plasma-nitrided surfaces of the austenitic Fe-Ni38-Cr15 and Fe-Ni36-Ti4 alloys using cyclic “nitride dissolution-nitride precipitation” phase transformations induced by megaplastic deformation. The high-pressure torsion of the nitrided alloys has led to the dissolution of the CrN nitrides and Ni3Ti intermetallic compounds, which appeared in the matrix, in the surface layer and to the mechanical alloying of the nitrided subsurface layer and the unnitriderd bulk of the specimens. Subsequent annealing has resulted in the formation of secondary nitrides, which propagated to a depth substantially exceeding the thickness of the original nitrided layer.
Similar content being viewed by others
References
V. A. Shabashov, S. V. Borisov, A. E. Zamatovsky, N. F. Vildanova, A. G. Mukoseev, A. V. Litvinov, and O. P. Shepatkovsky, “Deformation-induced transformations in nitride layers formed in bcc iron,” Mater. Sci. Eng., A, 452–453, 575–583 (2007).
V. A. Shabashov, S. V. Borisov, A. V. Litvinov, V. V. Sagaradze, A. E. Zamatovskii, K. A. Lyashkov, and N. F. Vil’danova, “Deformation-induced cyclic phase transitions of dissolution-precipitation of nitrides in surface layers of Fe-Cr-(Ni)-N alloys,” Phys. Met. Metallogr. 113, 489–503 (2012).
V. A. Shabashov, L. G. Korshunov, V. V. Sagaradze, A. V. Litvinov, and A. E. Zamatovskii, “Mössbauer analysis of nitride and carbide dissolution on austenitic high manganese steels under conditions of friction,” Bull. Russ. Acad. Sci.: Phys. 77, 710–715 (2013).
V. V. Sagaradze, A. V. Litvinov, V. A. Shabashov, N. F. Vil’danova, A. G. Mukoseev, and K. A. Kozlov, “New method of mechanical alloying of ODS steels using iron oxides,” Phys. Met. Metallogr. 101, 566–576 (2006).
V. A. Shabashov, K. A. Kozlov, K. A. Lyashkov, A. V. Litvinov, G. A. Dorofeev, and S. G. Titova, “Solid-phase mechanical alloying of BCC iron alloys by nitrogen in ball mills,” Defect Diffusion Forum 330, 25–37 (2012).
A. M. Staines and T. Bell, “Surface hardening of stainless steel by plasma nitriding techniques,” Stainless Ind. 12, 12–13 (1984).
V. A. Teplov, V. P. Pilyugin, R. I. Kuznetsov, D. I. Tupitsa, V. A. Shabashov, and V. M. Gundyrev, “Phase bccfcc transition caused by deformation under pressure of iron-nickel alloy,” Fiz. Met. Metalloved. 64, 93–100 (1987).
V. A. Shabashov, V. V. Sagaradze, A. V. Litvinov, A. G. Mukoseev, and N. F. Vildanova, “Mechanical synthesis in the iron oxide-metal system,” Mater. Sci. Eng., A, 392, 62–72 (2005).
V. S. Rusakov, Mössbauer Spectroscopy of Locally Inhomogeneous Systems (OPNI Inst. Yadern. Fiz. Nauchn. Yadern. Tsentra Resp. Kazakhstan, Almaty, 2000) [in Russian].
V. Shabashov, V. V. Sagaradze, S. V. Morozov, and G. A. Volkov, “Mössbauer study of the kinetics of deformation-induced solution of intermetallides in Fe-Ni-Ti austenite,” Metallofizika 12(4), 107–114 (1990).
A. Z. Men’shikov and E. E. Yurchikov, “Mössbauer effect in fcc iron-nickel alloys,” Zh. Eksp. Teor. Fiz. 63, 190–198 (1971).
R. M. Bozorth, Ferromagnetism, Ch. 5. Iron-Nickel Alloys (D. van Nostrand, Toronto, 1951), pp. 102–189.
A. Z. Men’shikov and A. E. Teplykh, “Magnetic phase diagram of γ FeNiCr alloys,” Fiz. Met. Metalloved. 44, 1215–1221 (1977).
C. Bansal and J. Chandra, “Mössbauer studies in disordered (NiFe)1 − x Cr alloys,” Solid State Commun. 19, 107–109 (1976).
P. Rochegude and J. Foct, “Influence of interstitial nitrogen on the thermal expansion of Fe64Ni36NXn alloys,” Scr. Metall. Mater. 27, 325–328 (1992).
I. I. Ali-Zade, S. S. Aliev, Sh. N. Karaeva, T. G. Shamilov, and T. A. Shukyurov, “Effect of nitriding on the magnetic structure and properties of Invar iron-nickel alloys,” Proc. Int. Conf. “Physics-2005”, Baku, 2005, pp. 394–395.
L. I. Mirkin, X-ray Control of Machine-Building Materials (Mashinostroenie, Moscow, 1979) [in Russian].
Yu. A. Skakov, “High-energy cold plastic deformation, diffusion, and mechanochemical synthesis,” Met. Sci. Heat Treatm. 46, 137–145 (2004).
V. V. Sagaradze, V. A. Shabashov, T. M. Lapina, N. L. Pecherkina, and V. P. Pilyugin, “Low temperature strain-induced dissolution of intermetallic phases Ni3Al(Ti, Si, Zr) in fcc Fe-Ni alloys,” Phys. Met. Metallogr. 78, 619–628 (1994).
H. J. Goldschmidt, Interstitial Alloys (Butterworths, London, 1967; Mir, Moscow, 1971).
L. G. Korshunov, V. A. Shabashov, N. L. Chernenko, and V. P. Pilyugin, “Effect of contact stresses on the phase composition, strength, and tribological properties of nanocrystalline structures formed under sliding friction,” Met. Sci. Heat Treatm. 50, 583–592 (2008).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.A. Shabashov, S.V. Borisov, A.V. Litvinov, N.V. Kataeva, S.V. Afanas’ev, S.G. Titova, 2014, published in Fizika Metallov i Metallovedenie, 2014, Vol. 115, No. 9, pp. 928–940.
Rights and permissions
About this article
Cite this article
Shabashov, V.A., Borisov, S.V., Litvinov, A.V. et al. Producing a gradient-composition nanocrystalline structure on nitrided surfaces of invar-type Fe-Ni alloys using megaplastic deformation. Phys. Metals Metallogr. 115, 871–883 (2014). https://doi.org/10.1134/S0031918X14090117
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0031918X14090117