Paper Titles
Evaluation of Selective Growth in a Fe-2.8%Si Single Crystal Using Rodrigues-Frank Space
p.203
Microstructural Coarsening during Annealing of Cold Rolled Aluminum
p.209
Effect of Post Weld Heat Treatment on Microstructure and Mechanical Properties of Welded 2205 Duplex Stainless Steel
p.217
Microstructural Control in Thick-Walled Nb-Ti-V Microalloyed Linepipe Steels
p.223
Recovery and Recrystallization in Cold Worked Fe – O Steels
p.229
Study of Texture and Recrystallization in Wire Steel
p.235
Cold Rolled Microstructure and Its Evolution during Recovery and First Recrystallisation Stages in Low Carbon Steels
p.241
Thermomechanical Behavior of Rapidly Solidified Fe-25Cr-20Ni
p.247
Static Recrystallization of Ti-IF Steel after Warm Deformation
p.251

Recovery and Recrystallization in Cold Worked Fe – O Steels

Article Preview

Abstract:

Several Fe – O samples containing different fractions of dispersed oxides were processed by mechanical milling followed by consolidating rolling. The samples were annealed at 1000oC and then compressed to strains of 0.35, 1.2, and 1.9 at an ambient temperature. Dispersed oxides with size of about 20 nm were homogeneously distributed throughout the ferrite matrix and their volume fractions varied from about 0.3% to 2.0%. To study the annealing softening mechanisms, the coldworked specimens were annealed for an hour at 700oC and 800oC. The fine dispersion of oxide particles was very effective to suppress any softening processes. Primary recrystallization fully developed in the samples with volume fraction of dispersed oxides of about 0.3%. Increase in the fraction of dispersed oxides resulted in decrease of the fraction recrystallized. In the samples containing 2.0 vol.% of dispersed oxides, only recovery was the annealing softening process irrespective of the preceding cold strain. The critical volume fraction of dispersed particles for development of the primary recrystallization is considered to range from 0.5 to 2.0%.

You might also be interested in these eBooks
Recrystallization and Grain Growth View Preview

Info:

Periodical:

Materials Science Forum (Volumes 467-470)

Pages:

229-234

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.467-470.229

Citation:

Cite this paper

Online since:

October 2004

Authors:

Andrey Belyakov, Yuushi Sakai, Toru Hara, Yuuji Kimura, Kaneaki Tsuzaki

Keywords:

Annealing Behaviour, Nanoparticle, Oxide-Bearing Steels, Primary Recrystallization, Recovery

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2004 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] Y. Kimura and S. Takaki: Mater. Trans. JIM Vol. 36 (1995), p.289.

Google Scholar

[2] C.C. Koch: Nanostructured Materials Vol. 9 (1997), p.13.

Google Scholar

[3] C. Suryanarayana: Progr. Mat. Sci. Vol. 46 (2001), p.1.

Google Scholar

[4] M. Umemoto: Mater. Trans. Vol. 44 (2003), p. (1900).

Google Scholar

[5] M. Ohtaguchi, K. Tsuzaki and K. Nagai: Recrystallization and Related Phenomena (ReX'99), T. Sakai and H.G. Suzuki, eds. (The Japan Institute of Metals, Sendai 1999), p.495.

Google Scholar

[6] Y. Sakai, M. Ohtaguchi, Y. Kimura and K. Tsuzaki: Ultrafine Grained Materials, R.S. Mishra, S.L. Semiatin, C. Suryanarayana, N.N. Thadhani, and T.C. Lowe, eds. (TMS, Warendale, PA 2000), p.361.

Google Scholar

[7] A. Belyakov, Y. Sakai, T. Hara, Y. Kimura and K. Tsuzaki: Metall. Mater. Trans. A Vol. 32A (2001), p.1769.

Google Scholar

[8] A. Belyakov, Y. Sakai, T. Hara, Y. Kimura and K. Tsuzaki: Metall. Mater. Trans. A Vol. 33A (2002), p.3241.

Google Scholar

[9] K. Tsuzaki: Mater. Sci. Forum Vol. 426-432 (2003), p.2771.

Google Scholar

[10] Y. Kimura, S. Takaki, S. Suejima, R. Uemori and H. Tamehiro: Iron Steel Inst. Jpn. Int. Vol. 39 (1999), p.176.

Google Scholar

[11] A. Belyakov, Y. Sakai, T. Hara, Y. Kimura and K. Tsuzaki: Scripta Mater. Vol. 45 (2001), p.1213.

Google Scholar

[12] A. Belyakov, Y. Sakai, T. Hara, Y. Kimura and K. Tsuzaki: Metall. Mater. Trans. A Vol. 34A (2003), p.131.

Google Scholar

[13] A. Belyakov, Y. Sakai, T. Hara, Y. Kimura and K. Tsuzaki: Scripta Mater. Vol. 48 (2003), p.1463.

Google Scholar

[14] W.B. Hutchinson and B.J. Duggan: Met. Sci. Vol. 12 (1978), p.372.

Google Scholar

[15] N. Hansen and B. Bay: Acta Metall. Vol. 29 (1981), p.65.

Google Scholar

[16] F.J. Humphreys and M. Hatherly: Recrystallization and Related Annealing Phenomena (Pergamon Press, Oxford 1996).

Google Scholar

[17] F.J. Humphreys: Met. Sci. Vol. 13 (1979), p.136.

Google Scholar

[18] A. Rosen, M.S. Burton and G.V. Smith: Trans. Metall. Soc. AIME Vol. 230 (1964), p.205.

Google Scholar