Effects of Al content and solidification rate on the crystal orientation of directionally solidified 1.3 wt% Si non-oriented electrical steel
Effects of Al content and solidification rate on the crystal orientation of directionally solidified 1.3 wt% Si non-oriented electrical steel
复制标题
DOI：
10.1088/2053-1591/ab4df1
复制
发表时间：
2019-10
影响因子：
2.3
通讯作者：
Yongjian Wan;K. Feng;Qingqing Zhao;Yichao Wu;D. Fan;Yunjin Xia;Jie Li;Yonghong Wen
中科院分区：
文献类型：
--
作者：
Yongjian Wan;K. Feng;Qingqing Zhao;Yichao Wu;D. Fan;Yunjin Xia;Jie Li;Yonghong Wen
1.3采用定向凝固技术制备了柱状组织发达、戈斯织构明显的Si-0.14 ~ 0.51Al无取向硅钢铸态棒材。研究了不同凝固速度下铸棒固液界面溶质富集情况、铸棒的微观组织和晶体取向。研究发现，合金元素Al在等轴向柱状转变过程中，在固液界面上几乎没有正分支偏聚。较高的凝固速率有利于长柱状戈斯晶粒的均匀形核，而较高的Al含量有利于柱状戈斯晶粒的稳定形核和进一步长大。
1.3 wt%Si–0.14 ∼ 0.51 wt%Al non-oriented silicon steel as-cast rods with developed columnar structure and pronounced Goss texture were produced using directional solidification technology. The solute enrichments, microstructures and crystal orientations at solid-liquid interface of rods under different solidification rates were investigated. It is found that alloying element Al has little positive branch segregation at solid-liquid interface during equiaxed-to-columnar transformation process. Higher solidification rate is favorable to the homogeneous nucleation of long columnar Goss grains, while higher Al content is beneficial to the stable nucleation and further growth of columnar Goss grain.