Modeling of Microstructure and Mechanical Properties of Hot Rolled Steels

Sokolov, D. F.; Ogoltcov, Alexey; Vasilyev, A.; Колбасников, Н. Г.; Sokolov, S. F.

doi:10.4028/www.scientific.net/msf.762.116

Cited by 16 publications

(10 citation statements)

References 7 publications

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“…Moreover, the model takes into account the effect of alloying by substitutional elements on the carbon diffusion coefficient of in bulk austenite [15]. The bainitic transformation model is briefly described in [4].…”

Section: Austenite Transformation Modelmentioning

confidence: 99%

Integral Computer Model for Simulating Microstructure Evolution during Thermomechanical Processing and Heat Treatment of Steels and Predicting their Final Mechanical Properties

Vasilyev

Sokolov²,

Sokolov³

et al. 2021

MSF

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An integral computer model/program AusEvol Pro was developed to describe the evolution of steel microstructure during thermomechanical processing (hot rolling, forging), as well as subsequent heat treatment (normalization, tempering), and to evaluate the final mechanical properties (yield stress, tensile stress, elongation), hardness and impact toughness. The program implements a set of physically based models that allow quantitative description of all significant processes of steel structure formation with account of the effects of chemical composition both during thermomechanical processing and heat treatment. Calculations of the final mechanical properties are carried out using the developed models that take into account all physically meaningful contributions. The models created are verified both on the extensive database of our own experimental studies and on reliable data from literature for steels of various chemical compositions.

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Section: Austenite Transformation Modelmentioning

confidence: 99%

Integral Computer Model for Simulating Microstructure Evolution during Thermomechanical Processing and Heat Treatment of Steels and Predicting their Final Mechanical Properties

Vasilyev

Sokolov²,

Sokolov³

et al. 2021

MSF

Self Cite

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“…3 can be seen that calculated and measured temperatures are in good quantitative agreement. The mathematical models of the above-given processes of structuring were published elsewhere [3,5]. They are distinguished by a physically reasonable accounting for the effects of all practically important alloying elements.…”

Section: Temperature Modelmentioning

confidence: 99%

“…Austenite decomposition model describes this process under continuous cooling condition for low alloyed steels with formation of all practically important structural components (ferrite, pearlite, bainite of different morphology and martesite). Physically based mathematical models of ferrite, pearlite and bainite transformations are described in [4,5].…”

Section: Austenite Microstructure Evolution Modelmentioning

confidence: 99%

Computer Model STAN 2000 and its Use in Practice of Steels Hot Rolling on Mill 2000 of Severstal

Ogoltcov¹,

Sokolov

et al. 2016

MSF

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An integral computer model/program STAN 2000 for simulation of steels hot rolling on mill 2000 of SEVERSTAL was developed. The capacity of the model includes, for example, the following features:‒ control of power parameters and prediction of hot strip temperature for a given rolling and accelerated cooling regimes;‒ follow-up of the evolution of steel microstructure at all stages of strip production and prediction of ultimate mechanical properties (yield stress, ultimate tensile stress and relative elongation);‒ optimization of rolling regimes for existing steel grades and developing them for a new ones.The STAN 2000 program is written in С++ programming language and can work on all modern Microsoft Windows family operating systems. The program has a well-designed and user-friendly interface facilitating its practical use.The integral model was calibrated using an extensive data base on rolling regimes and forces, measured temperatures and final mechanical properties for a number of steel grades rolled on mill 2000 of SEVERSTAL with chemical compositions covering the following ranges of alloying elements content (mass.%): С(≤0.65); Mn(≤2.0); Si(≤1.0); Cr(≤0.9); Ni(≤0.6); Cu(≤0.5); Mo(≤0.4); Nb(≤0.05); V(≤0.065); Ti(≤0.06); B(≤0.003).Some results of calculations performed with STAN 2000 program for temperatures, rolling forces and mechanical properties are presented and compared with experimental data. Some examples of the program utilization in hot strip production on mill 2000 of SEVERSTAL are presented and discussed.

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“…grain growth; -dynamic recrystallization; -static recrystallization providing for the effects of recovery and precipitation of carbonitrides of micro-alloying elements on the dislocations of deformed austenite. The mathematical models of the above-given processes of structuring were published elsewhere [3,5]. They are distinguished by a physically reasonable accounting for the effects of all practically important alloying elements.…”

Section: Model For Austenite Microstructure Evolution and Transformationmentioning

confidence: 99%

“…Austenite decomposition model describes this process under continuous cooling condition for low alloyed steels with formation of all practically important structural components (ferrite, pearlite, bainite of different morphology and martensite). Physically based mathematical models of ferrite, pearlite and bainite transformations are described in [4,5].…”

Section: Model For Austenite Microstructure Evolution and Transformationmentioning

confidence: 99%

Practical Use of Computer Model STAN 2000 for Improvement and Creation of Regimes for Hot Rolling of Steels on SEVERSTAL Mill 2000

Ogoltcov¹,

Sokolov

et al. 2016

MSF

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An integral computer model STAN 2000 designed for of-line simulation and control of hot rolling on mill 2000 of SEVERSTAL was developed. The capabilities of the model include the following features: ‒ calculations of power parameters for all stands of mill 2000 for a given rolling schedule; ‒ strip temperature calculations depending on selected rolling and accelerated cooling regimes; ‒ follow-up of steel microstructure evolution at all stages of strip production and prediction of ultimate mechanical properties (yield stress, ultimate tensile stress, relative elongation and toughness); ‒ optimization of rolling regimes for existing steel grades and developing them for a new one. The STAN 2000 program is written in С++ programming language and can work on all modern Microsoft Windows family operating systems. The program has a well-designed and user-friendly interface facilitating its practical use. The integral model was calibrated using an extensive data base on rolling regimes and forces, measured temperatures and final mechanical properties for a number of steel grades rolled on mill 2000 of SEVERSTAL with chemical compositions covering the following range of alloying elements content (mass.%): С(≤0.65); Mn(≤2.0); Si(≤1.0); Cr(≤0.9); Ni(≤0.6); Cu(≤0.5); Mo(≤0.4); Nb(≤0.05); V(≤0.065); Ti(≤0.06); B(≤0.003). The examples of STAN 2000 program use in practice of industrial hot strip production on mill 2000 of SEVERSTAL are presented and discussed.

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Modeling of Microstructure and Mechanical Properties of Hot Rolled Steels

Cited by 16 publications

References 7 publications

Integral Computer Model for Simulating Microstructure Evolution during Thermomechanical Processing and Heat Treatment of Steels and Predicting their Final Mechanical Properties

Integral Computer Model for Simulating Microstructure Evolution during Thermomechanical Processing and Heat Treatment of Steels and Predicting their Final Mechanical Properties

Computer Model STAN 2000 and its Use in Practice of Steels Hot Rolling on Mill 2000 of Severstal

Practical Use of Computer Model STAN 2000 for Improvement and Creation of Regimes for Hot Rolling of Steels on SEVERSTAL Mill 2000

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