Center for Industrial Research

Campana, Argentina

Center for Industrial Research

Campana, Argentina
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Musante L.,Center for Industrial Research | Galliano P.G.,Center for Industrial Research | Brandaleze E.,National University of Costa Rica | Munoz V.,Intema Inc. | Tomba Martinez A.G.,Intema Inc.
Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013 | Year: 2014

Taking in mind the locations of Al2O3-MgO-C (AMC) refractories in steelmaking ladles, a high corrosion resistance is required, among other properties. Moreover, due to the presence of graphite, AMC refractories are susceptible to the attack of oxidant gases. In this work, the oxidation by air between 700 to 1400°C and the corrosion resistance to a basic ladle slag at 1450°C of two commercial AMC refractories were evaluated. Differences in the chemical degradation were related to differences in compositions and open pores characteristics between the studied material. © 2014 The American Ceramic Society.

Cicutti C.,Center for Industrial Research | Martin M.,Center for Industrial Research | Donayo R.,Ternium | Gomez A.,Ternium
Revue de Metallurgie. Cahiers D'Informations Techniques | Year: 2010

Ternium Siderar has recently installed a commercial sensor that measures the sound originated during blowing. A proper analysis of this signal may give valuable information about the slopping tendency of the heat. Data from more than 4000 heats were collected and thoroughly analyzed. The influences of the materials charged and of their compositions on the slag slopping tendency were investigated. Based on these results, an application to evaluate the risk of slopping for given process conditions was developed. © EDP Sciences.

Serebrinsky S.A.,Center for Industrial Research
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics | Year: 2011

We rigorously establish a physical time scale for a general class of kinetic Monte Carlo algorithms for the simulation of continuous-time Markov chains. This class of algorithms encompasses rejection-free (or BKL) and rejection (or "standard") algorithms. For rejection algorithms, it was formerly considered that the availability of a physical time scale (instead of Monte Carlo steps) was empirical, at best. Use of Monte Carlo steps as a time unit now becomes completely unnecessary. © 2011 American Physical Society.

The concept of a "Strain aging induced anisotropy in mechanical properties", proposed by Richards et al. [Mater. Sci. Eng. A 529 (2011) 184], is shown to be misleading. Anisotropy of strain aging kinetics is proposed as a possible source of confusion. © 2012 Elsevier B.V.

Ernst H.A.,Center for Industrial Research | Bravo R.E.,Center for Industrial Research | Villasante J.A.,Center for Industrial Research | Izquierdo A.,Tenaris Group
Journal of Offshore Mechanics and Arctic Engineering | Year: 2011

The effect of the yield (Y) to tensile (T) ratio Y/T on the structural integrity of linepipes with part through the thickness longitudinal defects subject to internal pressure was studied in this work. A model based on elastic-plastic fracture mechanics and plasticity theory was developed for that purpose. The analysis allows for load or deformation control situations. The results are shown in terms of curves of critical defect size versus the controlling variable, i.e., load or deformation. For each one of the several materials studied, different cases with different Y/T values were considered. Even for the lower limits of experimental data, i.e., larger Y/T, the materials have adequate defect tolerance. © 2011 American Society of Mechanical Engineers.

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