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Metallography, Microstructure, and Analysis
Erschienen in: Metallography, Microstructure, and Analysis 3/2014

01.06.2014 | Technical Article

A Dislocation Density-Based Model for Analyzing Mechanical Behavior of Dual-Phase Steels

verfasst von: Mohammad Jafari, Saeed Ziaei-Rad, Noushin Torabian

Erschienen in: Metallography, Microstructure, and Analysis | Ausgabe 3/2014

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Abstract

The aim of this work is to develop a microstructural analysis of the mechanical behavior of dual-phase steels. Finite element simulations were conducted, and the results were validated by experimental observations. A dislocation density constitutive formulation was used for the ferrite phase, while the Gurson–Tvergaard–Needleman damage model and an elastic–plastic model with isotropic hardening were used for the grain boundaries and martensite, respectively. The deformation and failure behavior of the material predicted by the model developed here showed good agreement with experimental observations. Moreover, the investigation on the effect of grain size and martensite volume fraction revealed that the microstructural inhomogeneity plays an important role in material behavior.
Vorheriger Artikel Effects of Nb on Microstructural Evolution and Mechanical Properties of Low-Carbon Cold-Rolled Dual-Phase Steels
Nächster Artikel Microstructure and Intermetallic Strengthening in an Equal Channel Angular Pressed AA2219. Part I: Microstructure Characterization

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Metadaten
Titel
A Dislocation Density-Based Model for Analyzing Mechanical Behavior of Dual-Phase Steels
verfasst von
Mohammad Jafari
Saeed Ziaei-Rad
Noushin Torabian
Publikationsdatum
01.06.2014
Verlag
Springer US
Erschienen in
Metallography, Microstructure, and Analysis / Ausgabe 3/2014
Print ISSN: 2192-9262
Elektronische ISSN: 2192-9270
DOI
https://doi.org/10.1007/s13632-014-0136-6

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