TSCR试制高强度无取向电工钢  

Development of High-strength Non-oriented Electrical Steel by TSCR

作　　者：潘振东[1] 项利[1] 张晨[1] 仇圣桃[1] 王忠英[1] 

机构地区：[1]先进钢铁流程及材料国家重点实验室,钢铁研究总院连铸技术国家工程研究中心,北京100081

出　　处：《钢铁钒钛》2013年第4期78-83,共6页Iron Steel Vanadium Titanium

摘　　要：采用固溶强化、细晶强化和位错强化方法，模拟TSCR流程试开发高强度无取向电工钢，试开发钢的主要合金成分为3％Si、0．83％A1和2．99％Mn。分析热轧、常化、退火后的钢板组织，并针对不同的成品板组织，详尽地分析了相应的力学性能和磁性能。试验电工钢平均晶粒直径为12．37“脚时，Rp0.2为530MPa，R100为618MPa；当退火制度为700℃×4min，成品组织完全为未再结晶的回复组织时，为853．5MPa，R100为895．5MPa。该成分的电工钢P。渊或P。Ⅲ最小时，对应的平均晶粒直径都大于59．67μm；P10/800或P10/1000最小时，对应的平均晶粒直径都处于12．37～59．67μm尺寸区间。TSCR was simulated to develop high-strength non-oriented electrical steel with 3% of Si, 0. 83% of A1 and 2. 99% of Mn by solution strengthening, grain refinement strengthening and dislocation strengthening. The microstructures of hot roiled plates, normalized plates and annealed plates were ana- lyzed. Furthermore, the mechanical properties and magnetic properties of products with different micro- structures were detailedly studied. As the average grain diameter of the steel was 12. 37 μm, the yield strength and the tensile strength of the steel were 530 MPa and 618 MPa respectively. As the annealing schedule of 700 x2 x 4 min was applied and the microstructure of the product was totally unrecrystallized, the yield strength and the tensile strength of the steel were 853.5 MPa and 895. 5 MPa respectively. As P15/55 or Plo/4oo of the steel was at the minimum value, the corresponding average grain diameter was larger than 60μm; as P10/800 or Plo/looo was at the minimum value, the corresponding average grain diameter was between 12. 37μm and 59.67 μm

关 键 词：高强度无取向电工钢 TSCR 固溶强化 细晶强化 位错强化 力学性能 磁性能 

分 类 号：TM275[一般工业技术—材料科学与工程]