A comparison of deformation, microstructure, mechanical properties and formability of SUS436L stainless steel in tandem and reversible cold rolling processes
Wen-tao Wang 1 , Jiao Zhang 1 , Feng-li Sui 1 , Zhi-xia Zhang 2 , Hong-yun Bi 2
1 School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243002, Anhui, China 2 State Key Laboratory of Development and Application Technology of Automobile Steels, Baowu Steel Group Co., Ltd., Shanghai 201900, China
A comparison of deformation, microstructure, mechanical properties and formability of SUS436L stainless steel in tandem and reversible cold rolling processes
Wen-tao Wang 1 , Jiao Zhang 1 , Feng-li Sui 1 , Zhi-xia Zhang 2 , Hong-yun Bi 2
1 School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243002, Anhui, China 2 State Key Laboratory of Development and Application Technology of Automobile Steels, Baowu Steel Group Co., Ltd., Shanghai 201900, China
摘要 A comparison was made for the deformation, microstructure, mechanical properties and formability of SUS436L stainless steel in tandem and reversible cold rolling processes. At first, the thermophysical parameters and stress–strain curves of SUS436L steel were measured in temperature range of 293–573 K and a flow stress model was regressed from the data of these curves. An analytical model based on the elasto-plastic finite element method was then established to simulate the tandem and the reversible cold rolling processes of SUS436L stainless steel strip where the flow stress model was introduced. The difference in shear strain distribution, microstructure, mechanical properties and formability of SUS436L steel strip in the two rolling processes was analyzed. The results showed that the larger shear strain, the enhanced intensity of c fiber texture and the excellent formability of the strip can be easily obtained in the tandem rolling process with the larger work roll rather than the reversible rolling process with the smaller work roll.
Abstract:A comparison was made for the deformation, microstructure, mechanical properties and formability of SUS436L stainless steel in tandem and reversible cold rolling processes. At first, the thermophysical parameters and stress–strain curves of SUS436L steel were measured in temperature range of 293–573 K and a flow stress model was regressed from the data of these curves. An analytical model based on the elasto-plastic finite element method was then established to simulate the tandem and the reversible cold rolling processes of SUS436L stainless steel strip where the flow stress model was introduced. The difference in shear strain distribution, microstructure, mechanical properties and formability of SUS436L steel strip in the two rolling processes was analyzed. The results showed that the larger shear strain, the enhanced intensity of c fiber texture and the excellent formability of the strip can be easily obtained in the tandem rolling process with the larger work roll rather than the reversible rolling process with the smaller work roll.
Wen-tao Wang,Jiao Zhang,Feng-li Sui, et al. A comparison of deformation, microstructure, mechanical properties and formability of SUS436L stainless steel in tandem and reversible cold rolling processes[J]. Journal of Iron and Steel Research International, 2019, 26(5): 442-451.