Fabrication of high permeability non-oriented electrical steels by increasing ⟨0 0 1⟩ recrystallization texture using compacted strip casting processes
Fabrication of high permeability non-oriented electrical steels by increasing ⟨0 0 1⟩ recrystallization texture using compacted strip casting processes
复制标题
采用致密薄带连铸工艺增加再结晶织构来制造高磁导率无取向电工钢
DOI：
10.1016/j.jmmm.2014.08.052
复制
发表时间：
2015-01-15
影响因子：
2.7
通讯作者：
Wang, Guo-Dong
中科院分区：
文献类型：
--
作者：
Liu, Hai-Tao;Schneider, J.;Wang, Guo-Dong
本文报道了采用双辊铸轧技术获得2 mm厚Fe-3.2%Si合金材料，并对其进行热轧、冷轧和退火。在温和热轧至1 mm厚度和温和冷轧至0.35 mm厚度之后，我们在最终加工的材料中获得了集中于立方体（{0 0 1））分量的高强度的γ-纤维< 0 0 1 >（平行于ND）和η-纤维（< 0 0 1 >平行于RD）织构< 0 1 0 >以及减小的γ-纤维（< 1 1 1 >平行于ND）织构，以及大的平均晶粒尺寸。本文详细描述了沿着所用工艺路线的显微组织和织构演变的实验结果。从取向形核、微生长选择、累积变形储能、几何软化和取向钉扎等方面解释了理想再结晶织构的形成机理。它将被证明，这种新的工艺路线，使用紧凑的带材铸造提供了可能性，以制造高磁导率的无取向电工钢，而无需额外的制造步骤，如热轧带退火或两步冷轧中间退火的情况下，在传统的工艺路线。(C)2014 Elsevier B. V.保留所有权利，
In this paper we will report on the application of the twin-roll casting technique to get a 2 mm thick material of Fe-3.2%Si alloy, which was finally hot rolled, cold rolled and annealed. After a mild hot rolling to a thickness of 1 mm and a mild cold rolling to a thickness of 0.35 mm, we obtained a high intensity of lambda-fiber (< 0 0 1 >parallel to ND) and eta-fiber (< 0 0 1 >parallel to RD) texture concentrated on cube ({0 0 1)< 0 1 0 >) component and a diminishing intensity of the gamma-fiber (< 1 1 1 >parallel to ND) texture, and a large average grain size in the final processed material. The experimental results for the evolution of the microstructure and texture along the used processing routes were described within the paper in detail. The formation mechanism for the desired recrystallization textures were explained in terms of oriented nucleation, micro-growth selection, accumulated deformation stored energy, geometric softening and orientation pinning. It will be demonstrated that this new processing route using the compact strip casting offers the possibility to fabricate high permeability non-oriented electrical steels without additional fabrication steps like hot band annealing or two step cold rolling with intermediate annealing as in the case of conventional processing route. (C) 2014 Elsevier B.V. All rights reserved,