婷婷在线视频日韩色综合,日本少妇色xxxxx,亚洲国产综合久久精品

Info

Title:: Effect of Cooling Rate on Recrystallization Texture and Magnetic Induction of 6.5%Si High Silicon Steel

Author(s):: LU Hailong; LIU Jing; CHENG Zhaoyang; YUAN Zexi; BI Yunjie; JIA Juan; FAN Lixia; （The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081，China）

Keywords:: 6.5%Si high silicon steel; recrystallization texture; residual stress; magnetic induction B8

Abstract:: In this paper, we have studied the effect of cooling rate on the recrystallisation texture, the residual stress and the magnetic induction of 6.5%Si high silicon steel. The thin sample sheets were kept at 1000 ℃ for 1 h and then cooled with different cooling mediums. The macrotexture and the residual stress were measured by XRD, while the micro-texture was analysed by EBSD. Magnetic measuring instrument was used to obtain the magnetic induction B8. The results showed that the cooling rate after recrystallization annealing had no significant effect on the type, content and distribution of recrystallized texture of 6.5%Si high silicon steel. However, with the decrease of cooling rate, the deviation of {100} and {110} fiber textures from the ideal orientation was reduced, which was beneficial to improving magnetic induction B8. The residual stress on (100) and (110) crystal planes was much higher than that on (111) crystal plane. Moreover, as cooling rate decreased, the residual stress in all specimens decreased gradually, which was the main reason for the change in deviation degree of texture. Since the crystal lattice distortion caused by residual stress reduced with the decrease of the cooling rate, the displacement resistance of magnetic domain walls decreased during magnetization. Thus the magnetic induction B8 increased gradually.