Thermo-mechanical modeling of two phase rolling and microstructure evolution in the hot strip mill

Phaniraj, M.P.; Behera, Binod Bihari; Lahiri, A.

doi:10.1016/j.jmatprotec.2006.03.173

Cited by 30 publications

(18 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the one hand, the temperature of the slab surface will be lower than the slab center, due to heat loss from the slab surfaces. On the other hand, the heavy deformation might generate heat, leading to the slab surface and center temperatures increasing [9,10]. In addition, the start rolling temperature for process control is the slab surface temperature measured with an infrared pyrometer, since basing the process on the actual temperatures inside of a slab is not technically feasible.…”

Section: Experiments and Simulationmentioning

confidence: 99%

Study of the Dynamic Strain-Induced Transformation Process of a Low-Carbon Steel: Experiment and Finite Element Simulation

He¹,

Ruan²,

Chen³

et al. 2016

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

The microstructures and mechanical properties of a low-carbon steel, hot-rolled by a six-pass dynamic strain-induced transformation (DSIT) process, with different start rolling temperatures, are studied by combining experiments and finite element simulations. The start rolling temperatures of the last three passes are about 10°C higher and 20°C lower than theAr3temperature, for Processes 1 and 2, respectively. The results show that as the rolling process proceeds, rolling forces increase, while slab temperatures decrease. Before starting Pass 4, the temperature of the slab center is higher than that of the slab surface. During Pass 4 to Pass 6, however, the temperatures of the slab center and surface are nearly identical but fluctuate remarkably due to the large reduction rate. The simulated maximum rolling force and start rolling temperature of each pass agree reasonably with the experimental measurements. It is found that the simulated start temperatures of the slab center in the last three passes are about 5~25°C higher than theAr3temperature for Process 1, and the DSIT condition is better satisfied for Process 2. As a result, Process 2 produces finer grain sizes and higher yield strengths than Process 1.

show abstract

Section: Experiments and Simulationmentioning

confidence: 99%

Study of the Dynamic Strain-Induced Transformation Process of a Low-Carbon Steel: Experiment and Finite Element Simulation

He¹,

Ruan²,

Chen³

et al. 2016

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…Stuart W. Churchill et al could assess temperature rise and heat transfer phenomena under certain wall temperature based on a formula established through Rayleigh number test and laminar boundary layer theory [3]. Madakasira Prabhakar Phaniraj et al used semi-empirical method for recrystallization and particle growth, conducted a simulation using common programs, and explained the deformation and load of strip and the changes in the diameter and temperature of rolling during a finishing mill process [4]. To improve finite elements method which too much time and expense is required to apply to an actual production process, J. H. Lee et al configured On-Line model to ensure the accuracy of calculation and to reduce the time of interpretation using least square method and dimensional analysis [5].…”

Section: Introductionmentioning

confidence: 99%

Prediction of Temperature of Hot Strip in Finishing Mill

Lee¹,

Kang²,

Kim³

et al. 2016

Advanced Science and Technology Letters

View full text Add to dashboard Cite

Abstract. This study focuses on predicting the temperature distribution of strip ranging from FET to FDT of an actual finishing mill process. Heat transfer phenomena generated in strip were modeled using a finite difference method. A simulator to predict the temperature distribution of strip was created in consideration of different heat transfer phenomena such as plastic heating, frictional heating and contact heat transfer generated in a finishing mill process.

show abstract

“…many scholars have conducted simulation analysis on the rolling process of section steel using large commercial finite element softwares. Phaniraj et al [1] have used DEFORM to simulate the whole rolling process of H-beam with thermo-mechanical coupling method, and obtain the distribution rule of the stress-strain field. He et al [2,3] has simulated and analyzed the metal flowing law and temperature field of medium-sized H-beam, in which the stress, strain and heat exchange have been considered.…”

Section: Introductionmentioning

confidence: 99%

“…The rolling process of H-beam can be regarded as a quasi-static process as the rolling forming speed is relatively uniform and loading speed is relatively slow. In ABAQUS analysis, the equation of time increment can be given as (1) where is the time increment, is the minimum element size, is the material density, is the thermal conductivity, is the shear modulus, is the velocity, is the adiabatic exponent.…”

Section: Introductionmentioning

confidence: 99%

Development of the Simulation System of Multi-model H-beam Rolling

Li¹,

Zhang

Ren³

et al. 2015

Advances in Computer Science Research

View full text Add to dashboard Cite

Simulation system plays an important role in the production process control and product optimization of multi-model H-beam hot rolling process. In this paper, an automatic modeling module was developed based on the customized application development method provided by ABAQUS, and the rolling process of HN900×300 was taken as an example to conduct a simulation analysis. As a result, the automatic modeling, high pressure water descaling, cogging rolling, universal rolling and cooling were realized. Also, the surface temperature of H-beam was measured by thermal infrared imager at production site. It is found that the results of finite element simulation are basically consistent with the measuring results. The simulation system developed in this paper can improve the production process control of multi-model H-beam rolling.

show abstract

Thermo-mechanical modeling of two phase rolling and microstructure evolution in the hot strip mill

Cited by 30 publications

References 21 publications

Study of the Dynamic Strain-Induced Transformation Process of a Low-Carbon Steel: Experiment and Finite Element Simulation

Study of the Dynamic Strain-Induced Transformation Process of a Low-Carbon Steel: Experiment and Finite Element Simulation

Prediction of Temperature of Hot Strip in Finishing Mill

Development of the Simulation System of Multi-model H-beam Rolling

Contact Info

Product

Resources

About