Grain Refinement in Austenitic Stainless Steel during Warm Screw Rolling

Anna Mogucheva; Nikolay Lopatin; Andrey Belyakov; Rustam Kaibyshev

doi:10.4028/www.scientific.net/MSF.715-716.889

Paper Titles

Spatially Inhomogeneous Recrystallization in Ferritic Stainless Steels
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Growth History of Individual Grains in Polycrystals: Theoretical Model and Simulation Studies
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Microstructure Numerical Modelling Change during the Round Bars Rolling
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Grain Refinement in Austenitic Stainless Steel during Warm Screw Rolling
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Structural Changes in a 9%Cr Creep Resistant Steel during Creep Test
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Real-Space Analysis of Grain Boundary Fluctuations in Two Dimensional Colloidal Crystals
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Dynamic Recrystallization of Ferrite in a Low Carbon Steel with the (α+θ) Duplex Microstructures
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The Effect of High Temperature Grain Refinement on the Isothermal Ferrite Grain Growth Kinetics in Steel S460
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HomeMaterials Science ForumMaterials Science Forum Vols. 715-716Grain Refinement in Austenitic Stainless Steel...

Grain Refinement in Austenitic Stainless Steel during Warm Screw Rolling

Abstract:

The development of dynamic recrystallization in a 304-type austenitic stainless steel during warm multi-pass screw rolling was studied. The fraction recrystallized depended significantly on the distance from the centre of rolled rods. The highly elongated original grains were mainly observed in the centre of processed samples, while the portions close to the sample edge were characterized by relatively fast development of dynamic recrystallization leading to formation of almost equiaxed fine grains with a size of about 1 μm. The volume fraction of fine grains in the edge areas increased with straining and exceeded 0.7 after rolling to 63% cross area reduction. The structural mechanism responsible for the grain refinement was considered as continuous dynamic recrystallization. The difference in the recrystallization kinetics across the sample is associated with the variation in strain intensity.

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Materials Science Forum (Volumes 715-716)

Pages:

889-894

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.715-716.889

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Online since:

April 2012

Authors:

Anna Mogucheva, Nikolay Lopatin, Andrey Belyakov, Rustam Kaibyshev

Keywords:

Austenitic Stainless Steel, Dynamic Recrystallization (DRX), EBSD, Ultrafine Grained Structure, Warm Screw Rolling

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References

[1] T.G. Nieh, L.M. Hsiung, J. Wadsworth and R. Kaibyshev: Acta Mater. Vol. 46 (1998), p.2789.

Google Scholar

[2] V.V. Stolyarov, R.Z. Valiev and Y.T. Zhu: Appl. Phys. Lett. Vol. 88 (2006), Art. No. 041905 Jan. 23.

Google Scholar

[3] Y. Kimura, T. Inoue and K. Tsuzaki: Science Vol. 320 (2008), p.1057.

Google Scholar

[4] H.J. McQueen and J.J. Jonas, in: Treatise on Materials Science and Technology, edited by R.J. Arsenoult, Academic Press, (1975), p.393.

Google Scholar

[5] T. Sakai and J.J. Jonas: Acta Metall. Vol. 32 (1984), p.189.

Google Scholar

[6] T. Sakai and J.J. Jonas, in: Encyclopedia of Materials: Science and Technology, edited by K.H. Buschow, R.W. Cahn, M.C. Flemings, B. Ilschner, E.J. Kramer, and S. Mahajan, volume 7, Elsevier, Oxford, UK (2001), p.7079.

DOI: 10.1016/b0-08-043152-6/01863-5

Google Scholar

[7] A. Belyakov, T. Sakai, H. Miura and R. Kaibyshev: Iron Steel Inst. Japan Int. Vol. 39 (1999), p.592.

Google Scholar

[8] A.V. Goncharuk, B.A. Romantsev, V.K. Mikhajlov, S.P. Galkin, E.V. Daeva, A.P. Chustova and A.A. Khzardzhjan, Patent No. RU2179900C.

Google Scholar

[9] A. Belyakov, K. Tsuzaki, H. Miura and T. Sakai: Acta Mater. Vol. 51 (2003), p.847.

Google Scholar

[10] A. Belyakov, T. Sakai, H. Miura and K. Tsuzaki: Philos Mag A, Vol. 81 (2001), p.2629.

Google Scholar