Mathematical Model and Theoretical Research of Flow Shear Constitutive Relation during Rheo-rolling of Semisolid Alloy
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2015年第5期
论文作者：赵占勇 管仁国 WEI Qing ZHANG Yang XU Guangming LI Yuandong
文章页码：1049 - 1055
摘 要：The mathematical model of flow shear constitutive relation during rheo-rolling process has been established. The distribution of velocity and shear stress in rolling cavity was investigated, and the effects of process parameters on shear stress of Sn-15 Pb alloy during rheo-rolling process were studied. In rolling cavity, the nearer the roll is, the bigger the velocity and shear stress are. The shear stress increases with the increment of the roll speed and the roll radius during rheo-rolling process, but deceases with the increment of the thickness of the strip. When the solid fraction of Sn-15 Pb alloy increases from 0.3 to 0.5, the shear stress increases slowly, but when the solid fraction increases from 0.5 to 0.6, the shear stress rapidly.
赵占勇1，管仁国1,2,3，WEI Qing1，ZHANG Yang1，XU Guangming1，LI Yuandong2
1. Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University2. School of Materials Science and Engineering, Lanzhou University of Technology
摘 要：The mathematical model of flow shear constitutive relation during rheo-rolling process has been established. The distribution of velocity and shear stress in rolling cavity was investigated, and the effects of process parameters on shear stress of Sn-15 Pb alloy during rheo-rolling process were studied. In rolling cavity, the nearer the roll is, the bigger the velocity and shear stress are. The shear stress increases with the increment of the roll speed and the roll radius during rheo-rolling process, but deceases with the increment of the thickness of the strip. When the solid fraction of Sn-15 Pb alloy increases from 0.3 to 0.5, the shear stress increases slowly, but when the solid fraction increases from 0.5 to 0.6, the shear stress rapidly.
关键词：
