TRIP-Assisted Multiphase Steels with Niobium Additions. Microstructures and Properties

Abstract:

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It seems completely clear that the combination within the same microstructure of various steel phases (ferrite, bainite, martensite) and the existence of the TRIP effect (i.e. a mechanically induced martensitic transformation) improves in a large way the properties of strength and ductility of low-alloy steels. TRIP-aided multiphase steels have been studied for several years and arouse a growing industrial interest. This project deals with the influence of a large Nb addition on the microstructure and mechanical properties of TRIP-assisted multiphase steels. It is shown that Nb influences in a large way the different phase transformations as well as the recrystallisation of the ferrite matrix occurring during the heat-treatment of cold-rolled TRIP-aided steels. As a consequence, the mechanical properties also depend on the parameters of the thermomechanical process and on the content and stability of the retained austenite.

Info:

Periodical:

Materials Science Forum (Volumes 500-501)

Edited by:

J.M. Rodriguez-Ibabe, I. Gutiérrez, B. López and A. Iza-Mendia

Pages:

445-452

DOI:

10.4028/www.scientific.net/MSF.500-501.445

Citation:

V. Andrade-Carozzo and P. J. Jacques, "TRIP-Assisted Multiphase Steels with Niobium Additions. Microstructures and Properties ", Materials Science Forum, Vols. 500-501, pp. 445-452, 2005

Online since:

November 2005

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Price:

$35.00

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