Mechanical behaviour of thermomechanically produced ultrafine grained dual-phase steels

Gonzalez-Ojeda, Roberto; García García, José Ovidio; Verdeja González, Luis Felipe; Quintana, María José; Verdeja González, José Ignacio

doi:10.1179/1879139513Y.0000000108

Mechanical behaviour of thermomechanically produced ultrafine grained dual-phase steels

Journal

Canadian Metallurgical Quarterly

ISSN

0008-4433

1879-1395

Date Issued

2014

Author(s)

Gonzalez-Ojeda, Roberto

Facultad de Ingeniería - CampCM

García García, José Ovidio

Verdeja González, Luis Felipe

Quintana, María José

Facultad de Ingeniería - CampCM

Verdeja González, José Ignacio

Type

text::journal::journal article

DOI

10.1179/1879139513Y.0000000108

URL

https://scripta.up.edu.mx/handle/20.500.12552/4488

Abstract

Dual-phase (DP) steels are an excellent alternative in the production of automotive parts that require high mechanical resistance, high impact strength and elevated elongation. These materials are produced using low alloy steels as a basis, reducing costs and resulting in a combination of martensite and ferrite structures with ultrafine grain size. These characteristics are achieved through strict control of rolling conditions, strain rate, cooling rate and coiling temperature. This work presents the results of tension testing of two types of DP steels, along with microstructural characterisation, in order to understand the effect of the advanced thermomechanical controlled rolling processes on the formation of the microstructure and resulting mechanical properties.