Microstructure and Property of 700MPa Ti Microalloyed High Strength Steel Produced by EAF-CSP

Ji Xiang Gao; Xin Ping Mao; Qi Lin Chen; Lie Jun Li

doi:10.4028/www.scientific.net/AMR.287-290.961

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 287-290Microstructure and Property of 700MPa Ti...

Microstructure and Property of 700MPa Ti Microalloyed High Strength Steel Produced by EAF-CSP

Abstract:

High strength steel ZJ700MC with yield strength grade of 700 MPa was successfully developed by Ti micro-alloyed technology in the EAF-CSP line at Zhujiang Steel. The composition design, smelting process, continuous casting and rolling process of the steel, as well as the mechanical properties of the hot-rolled product are introduced in the paper. An analysis on the strengthening mechanism of the high strength steel shows that the enhanced strength and toughness of the steel were caused by the refinement of ferrite grain and the precipitation strengthening of TiC.

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Periodical:

Advanced Materials Research (Volumes 287-290)

Pages:

961-965

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.287-290.961

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Online since:

July 2011

Authors:

Ji Xiang Gao, Xin Ping Mao, Qi Lin Chen, Lie Jun Li

Keywords:

Compact Strip Process (CSP), High Strength Steel (HSS), Microalloying, Titanium

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References

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