Development of Laminar Flow Cooling of Ultra-High Strength Ferrite-Bainite Dual Phase Steel

Wei Lv; Di Wu; Zhuang Li

doi:10.4028/www.scientific.net/AMM.184-185.940

Paper Titles

Controlled Growth of Carbon Spheres by Chemical Vapor Deposition Based on Anodic Aluminum Oxide Nano-Template
p.924

Corrosion Behavior of Prepainted Steel Sheets for Construction
p.928

Crystallization Behavior of Polyethylene/Montmorillonite Nanocomposites Prepared by In Situ Polymerization
p.932

Design for Noise Reduction of the Interior of Building Using Microcellular Foamed Plastics
p.936

Development of Laminar Flow Cooling of Ultra-High Strength Ferrite-Bainite Dual Phase Steel
p.940

Development of SIMPLE-Like Algorithms for Incompressible Navier-Stokes Equations in Liquid Processing of Materials
p.944

Development of Utilization of Vanadic Titanomagnetite
p.949

Dyeing Process Research of Shengma Fiber Knitted Fabric
p.954

Effect of Annealing Temperature on Corrosion Resistance of Cold-Rolled Strip of Complex Brass
p.959

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 184-185Development of Laminar Flow Cooling of Ultra-High...

Development of Laminar Flow Cooling of Ultra-High Strength Ferrite-Bainite Dual Phase Steel

Abstract:

In the present paper, controlled cooling in different ways was performed using a laboratory hot rolling mill in ultra-high strength hot rolled ferrite-bainite dual phase (DP) steel. The results have shown that the final microstructures of DP steel comprise ferrite, bainite and a small amount of retained austenite and martensite. DP steel has a tensile strength ranging from 1010 to 1130MPa and yet retains considerable total elongation in the range of 14–17%. The addition of Mn and Nb to DP steel leads to the maximum ultimate tensile strength, yield strength and the product of ultimate tensile strength and total elongation due to the formation of retained austenite and granular bainite structure. Laminar flow cooling after hot rolling results in a significant increase in the quantity of ferrite and bainite due to the suppression of pearlite transformation, and as a result, the present steel possesses high strengths and good toughness.

You might also be interested in these eBooks

Frontiers of Mechanical Engineering and Materials Engineering

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 184-185)

Pages:

940-943

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.184-185.940

Citation:

Cite this paper

Online since:

June 2012

Authors:

Wei Lv, Di Wu, Zhuang Li

Keywords:

Bainite, Dual Phase Steel, Finishing Cooling Temperature, Laminar Flow Cooling

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] J. D. M. Costa, J. A. M. Ferreira, L. P. M. Abreu, Fatigue behaviour of butt welded joints in a high strength steel, Procedia Engineering. 2 (2010) 697-705.

DOI: 10.1016/j.proeng.2010.03.075

Google Scholar

[2] S. J. Kima, Y. G. Choa, Development of a dual phase steel using orthogonal design method, Materials and Design. 30 (2009) 1251-1257.

Google Scholar

[3] E. Maire, O Bouaziz, D. Michiel, Initiation and growth of damage in a dual-phase steel observed by X-ray microtomography, Acta Materialia. 56 (2008) 4954-4964.

DOI: 10.1016/j.actamat.2008.06.015

Google Scholar

[4] M. H. Cai, H. Ding, Y. K. Lee, Strain hardening behavior of high performance FBDP, TRIP and TWIP steels, ISIJ Int. 51 (2011) 242-248.

DOI: 10.1002/srin.201000132

Google Scholar

[5] M. Sarwar, E. Ahmad, K. A. Qureshi, Influence of epitaxial ferrite on tensile properties of dual phase steel, Materials and Design. 28 (2007) 335-340.

DOI: 10.1016/j.matdes.2005.05.019

Google Scholar

[6] H. Luo, L. Zhao, S. O. Kruijver, Effect of intercritical deformation on bainite formation in Al-containing TRIP steel, ISIJ Int. 43 (2003) 1219-1227.

DOI: 10.2355/isijinternational.43.1219

Google Scholar