Simulation of Different Forming Mode of Wire Based on Thermo-Mechanical Coupling Method

Yang, Lijun; Hu, Jiang; Ning, Liwei; Romagos, A.

doi:10.5755/j01.mech.17.6.1013

Cited by 2 publications

(1 citation statement)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The microstructures and properties of the steel sheets produced by the DSIT process are impacted by several variables, such as rolling force and temperature, reduction rate, rolling pass and cooling rate [4,5]. An understanding of rolling force, temperature field, and stress-stain field of steels is necessary to optimize the DSIT process; however, the experimental data that can be measured during rolling processes are limited [6]. For example, it is impossible to obtain detailed information about the evolution of the temperature and stress-strain fields.…”

Section: Introductionmentioning

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: Introductionmentioning

confidence: 99%