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Warm Deformation Microstructure of a Plain Carbon Steel

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Abstract

Grain refinement in a plain carbon steel under intercritical warm deformation was studied by torsion testing. Based on the experimental results. the warm flow behaviour and microstructural evolution of ferrite were researched with particular emphasis on the effect of the strain rate in controlling the grain refinement mechanism of ferrite. The deformed microstructures were investigated at various strain rates using optical microscopy and electron back-scattered diffraction (EBSD). The EBSD observations indicate that an increase in the strain rate leads to the development of new fine ferrite grains with high angle boundaries. Furthermore, it shows that the annihilation of dislocations occurs more readily at lower strain rate. The elongated ferrite grains continuously dynamically recrystallize to form the equiaxed fine ferrite grains. Thereby, the aspect ratio of elongated grains decreases with increasing the strain rate. Furthermore, the peak stress and steady state stress of ferrite both increase with increasing strain rate. Based on the study, the effect of strain rate on the development of fine ferrite grains during continuous dynamic re-crystallization of ferrite was analyzed in detail.

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References

  1. Fernandez A I, Uranga P, Lopez B, et al. Dynamic Recrystal-lization Behavior Covering a Wide Austenite Grain Size Range in Nb and NtrTi Microalloyed Steels [J]. Mater Sc Eng, 2003, 361A(l/2): 367.

    Article  Google Scholar 

  2. McQueen H J, Yue S, Ryan N D, et al. Hot Working Characteristics of Steels in Austenitic State [J]. J Mater Process Tech, 1995, 53(1/2): 293.

    Article  Google Scholar 

  3. Jonas J J. Dynamic Rrecrystallization-Scientific Curiosity or Industrial Tools [J]. Mater Sc Eng, 1994, 184A(2): 155.

    Article  Google Scholar 

  4. Hodgson P D, Hickson M R, Gibbs R K. Ultrafine Ferrite in Low Carbon Steel [J]. Scripta Mater, 1999, 40(10): 1179.

    Article  Google Scholar 

  5. Yada H, Li C M, Yamagata H. Dynamic γ-→-α Transformation During Hot Deformation in Iron-Nickel-Carbon Alloys [J]. ISIJ Int, 2000, 40(2): 200.

    Article  Google Scholar 

  6. YANG Zhong-min, WANG Rui-zhen. Formation of Ultra-Fine Grain Structure of Plain Low Carbon Steel Through Deformation Induced Ferrite Transformation [J]. ISIJ Int, 2003, 43(5): 761.

    Article  Google Scholar 

  7. Beladi H, Kelly G L, Shokouhi A, et al. The Evolution of Ultrafine Ferrite Formation Through Dynamic Strain-Induced Transformation [J]. Mater Sc Eng, 2004, 371A(l/2): 343.

    Article  Google Scholar 

  8. Hurley P J, Muddle B C, Hodgson P D. The Production of Ultrafine Ferrite During Hot Torsion Testing of a 0. 11 Wt Pct C Steel [J]. Metall Mater Trans, 2002, 33A(9): 2985.

    Google Scholar 

  9. Najafi-Zadeh A, Jonas J J, Yue S. Grain Refinement by Dynamic Recrystallization During the Simulated Warm-Rolling of Interstitial Free Steels [J]. Metall Trans, 1992, 23A(9): 2607.

    Article  Google Scholar 

  10. Storojeva L, Ponge D, Kaspar R, et al. Development of Microstructure and Texture of Medium Carbon Steel During Heavy Warm Deformation [J]. Acta Mater, 2004, 52(8): 2209.

    Article  Google Scholar 

  11. Song R, Ponge D, Raabe D, et al. Microstructure and Crystallography Texture of an Ultrafine Grained C-Mn Steel and Their Evolution During Warm Deformation and Annealing [J]. Acta Mater, 2005, 53(3): 845.

    Article  Google Scholar 

  12. Belyakov A, Tsuzaki K, Miura H, et al. Effect of Initial Microstructures on Grain Refinement in a Stainless Steel by Large Strain Deformation [J]. Acta Mater, 2003, 51(3): 847.

    Article  Google Scholar 

  13. Gourdet S, Montheillet F. A Model of Continuous Dynamic Recrystallization [J]. Acta Mater, 2003, 51(9): 2685.

    Article  Google Scholar 

  14. Eghbali B, Abdollah-Zadeh A, Beladi H, et al. Characterization on Ferrite Microstructure Evolution During Large Strain Warm Torsion Testing of Plain Low Carbon Steel [J]. Mater Sc Eng, 2006, 435-436A: 499.

    Article  Google Scholar 

  15. Jazaeri H, Humphreys F J. The Transition From Discontinuous to Continuous Recrystallization in Some Aluminium Alloys: II—Annealing Behavior [J]. Acta Mater, 2004, 52(11): 3251.

    Article  Google Scholar 

  16. Belyakov A, Sakai T, Miura H, et al. Continuous Recrystallization in Austenitic Stainless Steel After Large Strain Deformation [J]. Acta Mater, 2002, 50(6): 1547.

    Article  Google Scholar 

  17. Hodgson P D, Collinson D C, Perett B. The Use of Hot Torsion to Simulate the Thermomechanical Processing of Steel [C]//Suzuki H G, Sakai T, Matsuda F. Proc of the Seventh 345 International Symposium on Physical Simulation. Tsuku-ba: Dynamic Systems Inc and NRIM, 1997: 219.

    Google Scholar 

  18. Sugden A A B, Bhadeshia H K D H. Thermodynamic Estimation of Liquidus, Solidus, Ae3 Temperatures, and Phase Compositions for Low Alloy Multicomponent Steels [J]. Mater Sc Technol, 1989, 5(10): 977.

    Article  Google Scholar 

  19. Beladi H, Kelly G L, Hodgson P D. Microstructural Evolution of Ultrafine Grained Structure in Plain Carbon Steels Through Single Pass Rolling [J]. Mater Sc and Technol, 2004, 20(12): 1538.

    Google Scholar 

  20. Hirata T, Mukai T, Saito N, et al. Experimental Prediction of Deformation Mechanism After Continuous Dynamic Recrystallization in Superplastic P/M7475 [J]. J Mater Sc, 2003, 38(19): 3925.

    Article  Google Scholar 

  21. Belyakov A, Sakai T, Miura H, et al. Grain Refinement Under Multiple Warm Deformation in 304 Type Austenitic Stainless Steel [J]. ISIJ Int, 1999, 39(6): 592.

    Article  Google Scholar 

  22. McQueen H J. Elevated Temperature Deformation at Forming Rates of 10−2 to 102 s−1 [J]. Metall Trans, 2002, 33A(2): 345.

    Article  Google Scholar 

  23. McQueen H J, Blum W. Dynamic Recovery: Sufficient Mechanism in the Hot Deformation of Al «99. 99) [J]. Mater Sc Eng, 2000, 290A(1/2): 95.

    Article  Google Scholar 

  24. Saiji M, Kei S, Susumu S, et al. Effect of Hot-Rolling Strain Rate in the Ferrite Region on the Recrystallization Texture of Extra-Low C Sheet Steels [J]. ISIJ Int, 1994, 34(1): 77.

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Materials Engineering, Sahand University of Technology, Tabriz, East Azerbaijan, 51335-1996, Iran

    B. Eghbali (Doctor, Associate Professor) & M. Shaban

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  1. B. Eghbali
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  2. M. Shaban
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Correspondence to B. Eghbali.

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Eghbali, B., Shaban, M. Warm Deformation Microstructure of a Plain Carbon Steel. J. Iron Steel Res. Int. 18, 41–46 (2011). https://doi.org/10.1016/S1006-706X(11)60088-5

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  • DOI: https://doi.org/10.1016/S1006-706X(11)60088-5

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