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Bainite Transformation Under Continuous Cooling of Nb-Microalloyed Low Carbon Steel

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Abstract

Utilizing Gleeble-1500 thermomechanical simulator, the influences of hot deformation parameters on continuous cooling bainite transformation in Nb-microalloyed low carbon steel were investigated. The results indicate that bainite starting temperature decreases with raising cooling rate and increases with increasing deformation temperature. Deformation has an accelerative effect on the bainite transformation when the specimens are deformed at 950 °C. When the deformation temperature increases, the effect of deformation on bainite starting temperature is weakened. The amount of bainite is influenced by strain, cooling rate, and deformation temperature. When the specimens are deformed below 900 °C, equiaxed ferrites are promoted and the bainite transformation is suppressed.

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References

  1. Hodgson P D, Hickson M R, Gibbs R K. Ultrafine Ferrite in Low Carbon Steel [J]. Scripta Materialia, 1999, 40(10): 1179–1184.

    Article  Google Scholar 

  2. CAI Ai-guo. Microstructure-Strength Relationships in Nb-V Microalloyed Medium Carbon Steel [J]. Journal of Iron and Steel Research, 1996, 8(2): 35–39 (in Chinese).

    MathSciNet  Google Scholar 

  3. LIU Xiang-hua, DU Lin-xiu, HU Yan-hui, et al. Development of 500 MPa Super Steel Strip [A]. The Chinese Society for Metals (CSM), Central Iron and Steel Research Institute (CIS-RI), Shanghai Baosteel Group Corporation (Baosteel), eds. Second International Conference on Advanced Structural Steels (ICASS 2004) [C]. Shanghai: The Chinese Society for Metals (CSM), 2004. 200–203.

  4. HU Yan-hui, DU Lin-xiu, GAO Cai-ru, et al. Industrial Trials of 500 MPa Supersteel [J]. Iron and Steel, 2004, 39(10): 54–58 (in Chinese).

    Google Scholar 

  5. Yang J R, Huang C Y, Hsieh W H. Mechanical Stabilization of Austenite Against Bainitic Reaction in Fe-Mn-Si-C Bainitic Steel [J]. Mater Trans JIM, 1996, 37(4): 579–585.

    Article  Google Scholar 

  6. Liu D S, Wang G D. Effect of Cooling Rate and Compressive Deformation of Austenite on Bainite Transformation and Mi-crostructure for Plastic Die AISI P20 Steel [J]. ISIJ International, 1998, 38(5): 482–488.

    Article  Google Scholar 

  7. Liu D S, Wang G D. Mechanical Stabilization of Deformed Austenite During Continuous Cooling Transformation in a C-Mn-Cr-Ni-Mo Plastic Die Steel [J]. Acta Metallurgica Sinica, 1998, 11: 93–99.

    Google Scholar 

  8. Yasuya Ohmori. Crystallographic Aspects of Bainite Transformation in Steels [J]. Scripta Materialia, 2002, 47(2): 201–206.

    Article  Google Scholar 

  9. Larn R H, Yang J R. The Effect of Compressive Deformation of Austenite on the Bainitic Ferrite Transformation in Fe-Mn-Si-C Steels [J]. Materials Science and Engineering, 2000, A278(3): 278–291.

    Article  Google Scholar 

  10. Feng H S, Yang J B. The Mechanism of Bainite Transformation in Steels [J]. Scripta Materialia, 2002, 47(2): 157–162.

    Article  Google Scholar 

  11. Muddle B C, Nie J F. Formation of Bainite as a Diffusional-Displacive Phase Transformation [J]. Scripta Materialia, 2002, 47(2): 189–192.

    Google Scholar 

  12. Lawrynowicz Z. Transformation From Upper to Lower Bainite in Fe-C-Cr Steel [J]. Materials Science and Technology, 2004, 20(11): 1447–1454.

    Article  Google Scholar 

  13. Chang L C. Microstructures and Reaction Kinetics of Bainite Transformation in Si-Rich Steels [J]. Materials Science and Engineering A, 2004, 368(1–2): 175–182.

    Article  Google Scholar 

  14. Khlestov V M, Konopleva E V. Kinetics of Austenite Transformation During Thermomechanical Processes [J]. Canadian Metallurgical Quarterly, 1998, 37(2): 75–88.

    Article  Google Scholar 

  15. Maki T. Physical Metallurgy of Direct-Quenched Steels [J]. Metals and Materials Society, 1993: 3–16.

    Google Scholar 

  16. Shipway P H, Bhadeshia H K D H. Mechanical Stabilization of Bainite [J]. Materials Science and Technology, 1995, 11 (11): 1116–1128.

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. State Key Laboratory of Rolling and Automation, Northeastern University, 110004, Shenyang, Liaoning, China

    Hai-long Yi (Doctor), Lin-xiu Du, Guo-dong Wang & Xiang-hua Liu

Authors
  1. Hai-long Yi
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  2. Lin-xiu Du
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  3. Guo-dong Wang
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  4. Xiang-hua Liu
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Correspondence to Hai-long Yi.

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Foundation Item: Item Sponsored by High Technology Development Program of China (863) (2001AA332020) and National Natural Science Foundation of China (50271015)

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Yi, Hl., Du, Lx., Wang, Gd. et al. Bainite Transformation Under Continuous Cooling of Nb-Microalloyed Low Carbon Steel. J. Iron Steel Res. Int. 13, 36–39 (2006). https://doi.org/10.1016/S1006-706X(06)60058-7

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  • DOI: https://doi.org/10.1016/S1006-706X(06)60058-7

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