Hot Deformation Behavior of a New-Generation 980 MPa Grade TRIP Steel for Automobiles

Abstract:

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Using a Gleeble 1500 thermo-mechanical simulator, the behavior of the dynamic recrystallization (DRX) of a low-silicon TRIP steel containing phosphorus and vanadium for automobiles is studied systematically. By the analysis of ture stress-strain curves, critical stress(σc) and strain(εc) are determined at different deformation conditions. The deformation activation energy Qdef is 323 kJ/mol. The ratios of εcp and σcp of the tested TRIP steel are 0.553 and 0.89, respectively. The equation for describing the Zener–Hollomn formula for tested steel is derived. A linear equation between σc, σp, εc, εp and lnZ have been established through regression analysis, respectively.

Info:

Periodical:

Advanced Materials Research (Volumes 261-263)

Edited by:

Jingying Zhao

Pages:

775-779

DOI:

10.4028/www.scientific.net/AMR.261-263.775

Citation:

X. Y. Hou et al., "Hot Deformation Behavior of a New-Generation 980 MPa Grade TRIP Steel for Automobiles", Advanced Materials Research, Vols. 261-263, pp. 775-779, 2011

Online since:

May 2011

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Price:

$35.00

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