Continuous Cooling Transformation Behavior of High Strength Low-Alloyed Cold Rolled Sheet Steel

Abstract:

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The dilatometry curves and the critical phase transformation temperatures of high strength low-alloyed (HSLA) cold rolled sheet steel were determined by thermal simulation test machine. The samples were austenitized at 900°C,deformed at 40% of deformation and cooled at different rates of 0.1°C/s~ 60°C/s. The continuous cooling transformation (CCT) diagram under deformation condition can be drawn. The results showed that the critical phase transformation temperatures are as follows: Ac3=900°C, Ac1=735°C, Ar3=825°C, Ar1=695°C. A few amount of martensite in high strength low-alloyed cold rolled steel can be obtained at the cooling rate of 60°C/s. The experimental data provide the technical references for rolling control, cooling control and heat treatment in real production.

Info:

Periodical:

Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

27-31

DOI:

10.4028/www.scientific.net/AMR.26-28.27

Citation:

H. Liu et al., "Continuous Cooling Transformation Behavior of High Strength Low-Alloyed Cold Rolled Sheet Steel ", Advanced Materials Research, Vols. 26-28, pp. 27-31, 2007

Online since:

October 2007

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Price:

$35.00

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