Microstructure and Microhardness of a Nanostructured Nickel-Iron Based Alloy

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This paper presents an overview and some original results about the mechanical properties and phase analysis of a nanostructured (NS) nickel-iron based alloy INCONEL 718. This structure was obtained by severe plastic deformation (SPD) via high pressure torsion (HPT) and multiple isothermal forging (MIF) of the alloy with an initial coarse-grained (CG) structure. Materials before and after SPD were analyzed by scanning, transmission electron microscopes and atom probe tomography (APT). Experimental data indicate that after HPT at room temperature - phase was partly dissolved and that precipitation of the -phase occurs during post deformation aging. A hardness up to 8 GPa was recorded for the NS alloy after SPD and annealing at 600°C.

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Periodical:

Edited by:

Yonghao Zhao

Pages:

127-135

DOI:

10.4028/www.scientific.net/MSF.683.127

Citation:

S. K. Mukhtarov and X. Sauvage, "Microstructure and Microhardness of a Nanostructured Nickel-Iron Based Alloy", Materials Science Forum, Vol. 683, pp. 127-135, 2011

Online since:

May 2011

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$38.00

[1] M.W. Mahoney, in: Superalloy 718 - Metallurgy and Applications, edited by E.A. Loria TMS (1989), p.391.

[2] R.P. Jewett and J.A. Halchak, in: Superalloys 718, 625 and Various Derivatives, edited by E.A. Loria TMS (1991), p.749.

[3] G.D. Smith and H.L. Flower, in: Superalloys 718, 625, 706 and Various Derivatives, edited by E.A. Loria TMS (1994), p.355.

[4] Y. Huang, M. Strangwood and P.L. Blackwell: Mater. Sci. Technol. Vol. 16 (2000), p.1309.

[5] R.Z. Valiev and I.V. Aleksandrov: Nanostructured materials processed by severe plastic deformation (Logos, Russia 2000).

[6] V.A. Valitov, O.A. Kaibyshev, Sh. Kh. Mukhtarov, B.P. Bewlay and M.F.X. Gigliotti: Mater. Sci. Forum Vol. 357-359 (2001), p.417.

DOI: 10.4028/www.scientific.net/msf.357-359.417

[7] Sh. Mukhtarov, V. Valitov and N. Dudova, in: Superalloys 718, 625, 706, and Various Derivatives, edited by E.A. Loria TMS (2005), p.507.

DOI: 10.7449/2005/superalloys_2005_507_516

[8] V.A. Valitov, Sh. Kh. Mukhtarov and Yu.A. Raskulova: The Physics of Metals and Metallography Vol. 102, No. 1 (2006), p.97.

[9] Y. Huang and T.G. Langdon: J. Mater. Sci. Vol. 42 (2007), p.421.

[10] V.V. Sagaradze and V.A. Shabashov: Nanostruct. Mater. Vol. 9 (1997), p.681.

[11] M. Muruyama, K. Hono and Z. Horita: Mater. Trans. JIM Vol. 40 (1999), p.938.

[12] Y. Ivanisenko, I. MacLaren, X. Sauvage, R.Z. Valiev and H. -J. Fecht: Acta Mater. Vol. 54 (2006), p.1659.

[13] X. Sauvage, C. Genevois, G. Da Costa and V. Pantsyrny: Scripta Mater. Vol. 61 (2009), p.660.

[14] X. Sauvage, A. Chbihi and X. Quelennec: Journal of Physics: Conference Series Vol. 240 (2010), 012003.

[15] C.T. Sims, N.S. Stoloff, and W.C. Hagel: Superalloys II: High Temperature Materials for Aerospace and Industrial Power (Wiley-Interscience, USA 1987).

[16] M.K. Miller, S.S. Babi and M.G. Burke: Mater. Sci. Eng. A Vol. 327 (2002), p.84.

[17] Sh. Mukhtarov, V. Valitov and N. Dudova: Rev. Adv. Mater. Sci. Vol. 25 (2010), in press.

[18] Sh. Mukhtarov: Mater. Sci. Forum Vol. 633-634 (2010), p.569.

[19] I.I. Novikov: Theory of metals heat treatment (Metallurgiya, Moscow 2000).

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