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Modeling the Structure of a Reinforcing Phase at Heat Treatment of Steel Products

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Inorganic Materials: Applied Research Aims and scope

Abstract

The article describes a new algorithm for predicting the structure of a reinforcing phase at heat treatment of high carbon steels. This approach is based on the construction of the distribution function of grains in their size for a set of regions in which the temperature gradient is sufficiently small. The proposed algorithm makes it possible to avoid calculating formation and growth of a single embryo and to proceed to modeling the structure in a relatively large cell, which can significantly reduce computational costs. To solve the problem of determining the distribution function of temperature fields, it is proposed to use a new approach based on integral heat transfer equations; this allows, on one hand, estimating the accuracy of calculations by the mismatch vector and, on the other hand, averaging thermophysical characteristics in a natural way and solving the problem on large-scale grid splits. Owing to the nonlinearity of the task and the need to use iterative procedures, integral equations provide the necessary conditions for their convergence. As a result of creating specialized software and carrying out a series of numerical calculations, it is possible to theoretically determine the necessary conditions for heat treatment for products made from steel of a particular grade: size and power of the heating inductor, the speed of its movement, the type of coolant and its feed rate, the depth of the hardened layer, etc.; as a result, this will make it possible to determine in advance the structure of the heat-treatable layer and reduce the total costs of experimental work.

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Authors and Affiliations

  1. Moscow Aviation Institute (National Research University), Moscow, Russia

    N. N. Svetushkov

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  1. N. N. Svetushkov
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Correspondence to N. N. Svetushkov.

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Translated by Sh. Galyaltdinov

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Svetushkov, N.N. Modeling the Structure of a Reinforcing Phase at Heat Treatment of Steel Products. Inorg. Mater. Appl. Res. 10, 12–18 (2019). https://doi.org/10.1134/S2075113319010313

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  • DOI: https://doi.org/10.1134/S2075113319010313

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