Continuous Cooling Transformation of Overcooling Austenite and Structure Evolution of Si Steel

Hui Li; Yun Li Feng; Da Qiang Cang; Meng Song

doi:10.4028/www.scientific.net/AMR.652-654.947

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 652-654Continuous Cooling Transformation of Overcooling...

Continuous Cooling Transformation of Overcooling Austenite and Structure Evolution of Si Steel

Abstract:

The static continuous cooling transformation (CCT)curves of 3.15 Si-0.036 C-0.21 Mn-0.008 S-0.008 N-0.022 Al are measured on Gleeble-3500 thermal mechanical simulator, the evolution of microstructure and the tendency of hardness are investigated by optical microscope (OM) and hardness tester. The results show that there is no evident change in microstructure which mainly are ferrite and little pearlite under different cooling rates, but the transition temperature of ferrite is gradually reduced with the increase of cooling rate. When the cooling rate is increased from 0.5°C/s to 20°C/s, the ending temperatures of phase transformation are decreased by 118°C, when cooling rate reaches to 10, Widmanstatten ferrite appears. The hardness of the steel turns out gradual upward trend with the increase of cooling rate.

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Periodical:

Advanced Materials Research (Volumes 652-654)

Pages:

947-951

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.947

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Online since:

January 2013

Authors:

Hui Li, Yun Li Feng, Da Qiang Cang, Meng Song

Keywords:

CCT Curve, Microstructure Refine, Phase Transformation, Si Steel

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References

[1] Z. Z. He : Electrical steel. Beijing Metallurgical industry press, 1997, 1~2.

Google Scholar

[2] W. Shen: Summary of cold-rolled oriented silicon steel Special Steel Technology, 2008, 14(1) 66~67.

Google Scholar

[3] S. Z. Zhang: The Atlas of Super–Cooling Austenite Transformation Diagrams. Beijing Metallurgical industry press, 1993. 1~2.

Google Scholar

[4] C. J. Wu, G. L . Chen And W. J. Qiang: Metal Material Science. Beijing Metallurgical industry press, 2006, 18~19.

Google Scholar

[5] G. X. Hu, Xun. Cai And Y. H. Rong: Fundamentals of Materials Science. Shanghai Shanghai jiao tong university press. 2006. 229~233.

Google Scholar

[6] Z. Q. Cui: Metallography Heat Treatment. Beijin China machine press. 2006. 274~276.

Google Scholar

[7] Q. L. Yong: Secondary phases in steels. Beijing Metallurgical industry press, 2006, 247~254.

Google Scholar