SURFACE PLASTIC DEFORMATION REGULARITY AND MICROSTRUCTURAL EVOLUTION IN THE COMPOUND ROLLING OF Q235 BILLET
In order to meet the double demands on the high temperature creep and the fatigue property, compound rolling is put forward in this study. This technique obtains dual microstructures of billet, fine microstructure on the surface and original state microstructure in the center, through localizing the plastic deformation on the surface layer and leaving little plastic deformation in the center. Based on the local load theory, a set of equipment for the compound rolling has been produced. In order to study the deformation regularity of the compound rolling, Q235 billets have been used and the flow net method for strain measurement has been employed. The deformation regularity difference between the compound rolling and the flat rolling has been investigated. In addition, the microstructural evolution after the compound rolling on the surface and in the center of the Q235 billet has been observed. The results indicate that the compound rolling technique will localize the plastic deformation on the surface of the billet but leave little plastic deformation in the center.
Compound rolling dual microstructures Q235
TAO LIN REN DE BIN SHAN YAN LU
School of Material Science and Engineering, Harbin Institute of Technology, Harbin, Peoples Republic of China
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1847-1852
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）