3D phase-field computations of microsegregation in nodular cast iron compared to experimental data and Calphad-based Scheil-prediction

J Eiken, E Subasic, J Lacaze - Materialia, 2020 - Elsevier
The redistribution of solute elements during processing of a nodular cast iron alloy was
simulated for the first time comprehensively over time and 3D space. Numerical predictions …

Trace elements and graphite shape degeneracy in nodular graphite cast irons

J Lacaze - International Journal of Metalcasting, 2017 - Springer
Graphite degeneracy in spheroidal graphite cast iron is a common issue faced by foundries.
It is generally associated with the presence of so-called poisoning elements and may in …

Identification of Cu-rich precipitates in pearlitic spheroidal graphite cast irons

LN García, AJ Tolley, FD Carazo… - Materials Science and …, 2019 - journals.sagepub.com
This investigation studies the partitioning of Mn and Cu–and Si–between ferrite and
cementite in the pearlite of two alloys containing similar Mn and Si concentrations, but …

Distance map based micromechanical analysis of the impact of matrix heterogeneities on the yield stress of nodular cast iron

T Andriollo, N Tiedje, J Hattel - Mechanics of Materials, 2020 - Elsevier
A method to construct 3D representative volume element (RVE) models of the nodular cast
iron microstructure that accounts for the presence of heterogeneities in the matrix is …

The Austenite-to-Pearlite/Ferrite Transformation

J Lacaze - 2017 - dl.asminternational.org
This article discusses the stable and metastable three-phase fields in the binary Fe-C phase
diagram. It schematically illustrates that austenite decomposition requires accounting for …

A graphite nodule growth model validated by in situ synchrotron x-ray tomography

MK Bjerre, MA Azeem, NS Tiedje… - … and Simulation in …, 2018 - iopscience.iop.org
An accurate prediction of ductile cast iron (DCI) microstructures is crucial for a science-
based optimisation of cast component design. The number density and distribution of …

The transition from stable to metastable system and its relation with the ferrite halo extension in SG cast irons

LN García, FD Carazo, PM Dardati - International Journal of Cast …, 2018 - Taylor & Francis
Microsegregations of alloying elements developed during solidification are known to affect
solid state transformations in spheroidal graphite cast irons. However, no clear relation …

About Equilibrium Mode Ruling Ferritic Transformation in Low-Alloy SGI

LN García, FD Carazo, RE Boeri - Metallurgical and Materials Transactions …, 2019 - Springer
Ferrite precipitating around the graphite nodules shaping the typical bull's-eye
microstructure could grow under negligible partitioning local equilibrium or under …

Formation of Cu-rich Nanoprecipitates in Cu Containing Pearlitic SGI

LN García, R Magnabosco, RE Boeri, AJ Tolley… - International Journal of …, 2021 - Springer
The presence of Cu-rich nanoprecipitates in a pearlitic spheroidal graphite (ductile) cast iron
alloyed with 0.82 wt% Cu was studied. The size and distribution of the precipitates were …

Effect of cooling rate on the eutectoid transformation in compacted graphite cast iron

J Lacaze, Y Thébault, A Freulon… - Materials Science …, 2018 - Trans Tech Publ
Differential thermal analysis has been used to characterize the effect of cooling rate on the
eutectoid transformation of a compacted graphite iron. The samples were machined out from …