Numerical simulation of structural transformations in hypoeutectoid low-alloy steels

Anufriev, N. P.; Майсурадзе, М. В.; Yudin, Yu.V.

doi:10.1007/s11041-011-9366-2

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…The kinetics of the transformation of perlite in steel 45Kh5MF was modeled by the method of [14]. The initial data for the modeling were the known rates of cooling of the dilatometric specimens and the corresponding experimentally determined fractions of perlite.…”

Section: Methods Of Studymentioning

confidence: 99%

Numerical Simulation of Pearlitic Transformation in Steel 45Kh5MF

2015

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A dilatometric study of steel 45Kh5MF used for making rolling mill rolls is performed. The results of the dilatometric and metallographic analyses are used to determine the kinetics of the perlitic transformation in the steel under continuous cooling. The developed method of numerical simulation of structural transformations under continuous cooling is used to solve the inverse problem and to plot a computational isothermal diagram of decomposition of supercooled austenite in steel 45Kh5MF in the range of perlitic transformation. To check the solution obtained an experimental isothermal diagram of decomposition of austenite in steel 45Kh5MF in the perlitic range is plotted. The data of both diagrams match accurately enough.

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Section: Methods Of Studymentioning

confidence: 99%

Numerical Simulation of Pearlitic Transformation in Steel 45Kh5MF

2015

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“…Due to the scale of eutectoid being in the micron range, it is still very difficult to observe and study through experimental methods. Micro-structure numerical simulation technology is an effective means to predict and study the mechanism of eutectoid transformation, and has become a research hotspot [4,5] . The phasefield method (PFM) based on the Ginzburg-Landau theory is one of the most effective methods to deal with the dynamics of microstructure evolution [6][7][8] .…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional multi-phase-field simulation of eutectoid alloy based on OpenCL parallel

Zhu

Fang-lan

et al. 2021

China Foundry

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Seeking high-performance computing methods to solve the problem of a large amount of calculation, low calculation efficiency, and small simulation scale on the traditional single central processing unit (CPU) platform is of great value to the simulation study of micro-structure. In this study, based on the three-dimensional multi-phase-field model of KKSO coupling phase-field and solute field, the open computing language (OpenCL) + graphics processing unit (GPU) heterogeneous parallel computing technology is used to simulate the eutectoid growth of Fe-C alloy and the end growth process of pearlite under pure diffusion. The effects of initial supercooling and different diffusion coefficients on the growth morphology of lamellar pearlite were investigated. The results show that ferrite and cementite are perpendicular to the front of the solid-solid interface and are coupled and coordinated to grow, and there is no leading phase under the initial supercooling degree of 20 K. With the continuous increase of the initial supercooling degree (19 K-22 K), the morphology changes of the eutectoid layer are as follows: cementite stops growing → slice amplitude increases → regular symmetric growth → oblique growth → layer merge. With the increase of the diffusion coefficient from 3×10 -13 m 2 •s -1 to 15×10 -13 m 2 •s -1 , the growth rate of the microstructure of the lamellar pearlite increases linearly, and there is no obvious change in the frontal appearance of the pearlite.

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An Analytical Model for Calculation of the Steel Hardness after Continuous Cooling

Майсурадзе

Рыжков

Лебедев

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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A number of modern engineering steel grades were analyzed using the CCT diagrams plotted by means of the dilatometer. The statistical analysis of the experimental data allowed for the determination of the equations connecting the critical cooling rate to achieve fully martensitic microstructure and the martensite hardness with the chemical composition of the steel. The dependence of the steel hardness on the cooling rate in the range of 0.1…30 °C/s was determined. It was shown that this dependence had the logarithmic character for every studied steel grade. The equations connecting the coefficients of the logarithmic function with the chemical composition of steel were obtained.

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Numerical simulation of structural transformations in hypoeutectoid low-alloy steels

Cited by 4 publications

References 13 publications

Numerical Simulation of Pearlitic Transformation in Steel 45Kh5MF

Numerical Simulation of Pearlitic Transformation in Steel 45Kh5MF

Three-dimensional multi-phase-field simulation of eutectoid alloy based on OpenCL parallel

An Analytical Model for Calculation of the Steel Hardness after Continuous Cooling

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