Effect of Rolling Reduction Rate on the Microstructure of Hot Rolling Stainless Steel Clad Plate

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Jin, Herong^1,2 ; Zhang, Lei^3 ; Yi, Yali^3

Key Lab. of Advanced Forging and Stamping Technology and Science of Ministry of National Education, Yanshan University, Qinhuangdao

066004, China^1

Parallel Robot and Mechatronic System Laboratory of Hebei Province, Yanshan University, Qinhuangdao

066004, China^2

School of Mechanical Engineering, Yanshan University, Qinhuangdao

066004, China^3

关键词: Coupling simulation;    Deformation resistance;    Grain distribution;    Hot rolling process;    Mesoscale simulation;    Rolling parameters;    Rolling temperature;    Uniform grain size;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/3/032123/pdf
DOI  :  10.1088/1757-899X/394/3/032123

来源: IOP

【 摘 要 】

The macro-scale and meso-scale simulation models of stainless steel clad plate were established by DEFORM-3D. The multi-scale coupling simulations of clad plate with different rolling parameters were carried out. The seven pass hot rolling process of stainless steel clad plate was simulated by numerical simulation. By contrasting the vertical stress and the deformation resistance of cladding layer, the rolling reduction rate satisfying interface bonding was obtained. The grain distribution at the center of the substrate layer was analyzed and reasonable hot rolling reduction rates were selected considering their effects on the recrystallization volume percent and the grain size. The results show that the grain size decreases with the increase of reduction rate. However, too much reduction rate will decrease the rate of recrystallization volume percent and the refining effect of grain is not obvious. To ensure uniform grain size distribution, it is most reasonable to set the rolling temperature to 1150°C and the reduction rate to 50%.