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Comment on Stefanescu, D.M.; Alonso, G.; Suarez, R. Recent Developments in Understanding Nucleation and Crystallization of Spheroidal Graphite in Iron-Carbon-Silicon Alloys. Metals 2020, 10, 221

Lacaze, Jacques and Castro-Román, Manuel Jesus Comment on Stefanescu, D.M.; Alonso, G.; Suarez, R. Recent Developments in Understanding Nucleation and Crystallization of Spheroidal Graphite in Iron-Carbon-Silicon Alloys. Metals 2020, 10, 221. (2020) Metals, 10 (4). 471. ISSN 2075-4701

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Official URL: https://doi.org/10.3390/met10040471

Abstract

In an article published in this journal in February 2020, Stefanescu et al. reviewed recent developments in understanding nucleation and growth of spheroidal graphite in cast iron [1]. The intention of the present comment is not to discuss the merits and limits of this highly documented paper in general, but to correct erroneous statements made by the authors in their Section 5.1. One of the approaches reviewed in this section is the work by Theuwissen et al. [2], who suggested that the 2-D poly-nucleation-growth (PNG) mechanism applied by Amini and Abbaschian [3] to describe the formation of polyhedral graphite plates in Ni–C alloys might also be operational for flake and spheroidal graphite in cast iron melts. This hypothesis has been supported by the analytical calculations of Lacaze et al. [4], and it is this latter work which is severely criticized by Stefanescu et al. in Section 5.1 of their paper [1]. In the following, we detail that the supposed numerical incongruities and seemingly shortcomings of the work by Lacaze et al. [4] are not real, but are based on a severe misinterpretation of the analytical model parameters and results.

Item Type:Article
Additional Information:Licence : Creative Commons Attribution (CC BY 4.0)
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional - CINVESTAV-IPN (MEXICO)
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Deposited On:17 Nov 2020 09:25

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