Modeling of Phase Transformation and Carbon Behaviors after Holding at γ/α Region and Controlled Cooling in Low Carbon Steels

J.M. Choi; B.J. Park; K.S. Lee; K.J. Lee

doi:10.4028/www.scientific.net/MSF.638-642.3331

Paper Titles

Effect of Martensite in Initial Structure on Bainite Transformation
p.3307

Effects of Manganese Content and Heat Treatment Condition on Mechanical Properties and Microstructures of Fine-Grained Low Carbon TRIP-Aided Steels
p.3313

First-Principles Calculations and the Thermodynamics of Cementite
p.3319

Calculation of Stress-Strain Curve of Two-Phase Microstructure on the Basis of the Extended Secant Method
p.3325

Modeling of Phase Transformation and Carbon Behaviors after Holding at γ/α Region and Controlled Cooling in Low Carbon Steels
p.3331

The Effect of Cooling Rate on the Damage Micromechanisms of DP Steels
p.3337

A View on the Strategy in the Processing of Hot Rolled Dual Phase Steels
p.3343

Effect of Coiling Temperature on Microstructure and Mechanical Properties of a Nb-V Microalloyed Steel
p.3350

A Study of the Carbides in High-Speed Steel Rolls
p.3356

HomeMaterials Science ForumMaterials Science Forum Vols. 638-642Modeling of Phase Transformation and Carbon...

Modeling of Phase Transformation and Carbon Behaviors after Holding at γ/α Region and Controlled Cooling in Low Carbon Steels

Abstract:

It is very important to understand interstitial carbon behaviors in cold rolled steel to get the good formability as well as the high strength. In low carbon steel, most of carbons are consumed by the formation of grain boundary cementite during cooling. During heating and holding between Ae1 and Ae3, cementite is dissolved and consequently carbon enriched austenite is formed. By controlled cooling, retained austenite as well as bainite and martensite are formed. In this study, the effect of silicon, intercritical annealing, isothermal bainite transformation on the formation of ferritic bainite, cementite and retained austenite are modeled by nucleation and growth, diffusion and dissolution. In addition, the formation of retained austenite and their carbon contents are modeled and compared with experimental data.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 638-642)

Pages:

3331-3336

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.638-642.3331

Citation:

Cite this paper

Online since:

January 2010

Authors:

J.M. Choi, B.J. Park, K.S. Lee, K.J. Lee

Keywords:

Growth, Isothermal Bainite Transformation, Nucleation, Retained Austenite, TRIP Steel

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] B. Sundman: Thermo-Calc, Royal Institute of Technology, Stockholm.

Google Scholar

[2] G. Ghosh and G.B. Olson: Acta Metall. Vol. 50 (2002), p. (2099).

Google Scholar

[3] S. Nanba, M. Katsumata, T Inoue, S. Nakajima, G. Anan, A. Hiramatsu, A. Moriya, T. Watanabe and M. Umemoto: CAMP-ISIJ Vol. 3 (1990), p.871.

Google Scholar

[4] J. Mahieu, J. Maki, B.C. De Cooman and S. Claessens: Metal. Mater. Trans. Vol. 33A (2002), p.2573.

Google Scholar

[5] R. L. Miller: Trans. ASM Vol. 57 (1964), p.892.

Google Scholar

[6] R. L. Miller: Trans. ASM Vol. 61 (1968), p.592.

Google Scholar

[7] J.W. Christian: Theory of Transformations in Metals and Alloys (3rd ed., Pergamon Press, Oxford 1975).

Google Scholar

[8] H.I. Aaronson and J.K. Lee: Lectures on the Theory of Phase Transformations (TMS-AIME, New York, NY 1975).

Google Scholar

[9] G.I. Rees and H.K.D.H. Bhadeshia: Mater. Sci. Technol. Vol. 8 (1992), p.985.

Google Scholar

[10] H.K.D.H. Bhadeshia: Bainite in Steels (The Institute of Materials, Cambridge university Press, Cambridge 1992).

Google Scholar

[11] M. Azuma, N. Fujita, M. Takahashi, T. Senuma, D. Quidort and T. Lung: ISIJ Int. Vol. 45(2) (2005), p.221.

DOI: 10.2355/isijinternational.45.221

Google Scholar

[12] A. Ali and H.K.D.H. Bhadeshia: Mater. Sci. Technol. Vol. 6 (1990), p.781.

Google Scholar

[13] Metals Reference Book (4th ed., ed. by C. J. Smithells et al., Butterworths, London 1967).

Google Scholar

[14] J.J. Wits, T.A. Kop, Y. van Leeuwen, J. Seitsma and S. van der Zwaag: Mater. Sci. Eng. A Vol. 283 (2000), p.234.

DOI: 10.1016/s0921-5093(00)00735-8

Google Scholar

[15] G. Krauss: Principles of Heat Treatment of Steel (ASM International, Materials Park, Ohio).

Google Scholar