Determination of Intermediate Complete Decarburizing Annealing Process of Common Grain-Otiented Silicon Steel
摘 要
为了确定普通冷轧取向硅钢最优的中间完全脱碳退火工艺, 在其一次冷轧后进行5种不同工艺的脱碳退火处理, 借助扫描电镜及电子背散射衍射技术研究了不同工艺脱碳退火后的组织、织构和脱碳效果。结果表明: 经5种工艺脱碳退火处理后, 初次再结晶的平均晶粒尺寸均约为19 μm, 且不随退火温度和时间的变化而变化; 经840 ℃×10 min工艺退火后的晶粒最均匀, 高斯织构位向更准确, 高斯织构面积分数最多, 为3.1%, 可将碳脱至0.003 5%。
Abstract
In order to determine the optimal intermediate complete decarburizing annealing processes for common grain-oriented (CGO) silicon steel, five kinds of intermediate decarburizing annealing processes were conducted, the microstructure, texture and decarbonization after different decarburizing annealing processes were studied by scanning electron microscopy and electro back-scattered diffraction (EBSD) technology. The results show that the average grains sizes of primary recrystallization were about 19 μm after five kinds of decarburizing annealing processes treatment, and them hardly varied with annealing temperature and time. The grains size was most uniform after annealing at 840 ℃ for 10 min, the Goss texture orientation annealing was more accurate and the area frction of Goss texture was most, and up to 3.1%. The process of 840 ℃×10 min could decarbonize to 0.003 5wt%.
中图分类号 TG156
所属栏目 新材料新工艺
基金项目 国家自然科学基金和宝山钢铁股份有限公司联合资助项目(50934009)
收稿日期 2012/11/22
修改稿日期 2013/8/30
网络出版日期
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备注陈友根(1961-), 男, 安徽马鞍山人, 博士研究生。
引用该论文: CHEN You-gen,FAN Li-feng,ZHANG Chen,XIANG Li,TANG Guang-bo,QIU Sheng-tao. Determination of Intermediate Complete Decarburizing Annealing Process of Common Grain-Otiented Silicon Steel[J]. Materials for mechancial engineering, 2013, 37(11): 73~76
陈友根,樊立峰,张晨,项利,唐广波,仇圣桃. 普通冷轧取向硅钢中间完全脱碳退火工艺的确定[J]. 机械工程材料, 2013, 37(11): 73~76
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参考文献
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【2】PARK J Y, HAN K S, WOO J S, et al. Influence of primary annealing condition on texture development in grain oriented electrical steels[J].Aeta Materialia, 2002, 50(7): 1825-1834.
【3】李长一, 叶影萍, 陈士华, 等.抑制剂和点阵畸变对取向电工钢的再结晶织构的影响[J]. 金属材料与冶金工程, 2009, 37(4): 3-7.
【4】张晨, 项利, 董廷亮, 等.取向硅钢脱碳退火的试验研究[J].钢铁研究学报, 2009, 27(12): 55-58.
【5】刘静, 王若平, 石文敏.低温取向硅钢一次再结晶组织对磁性能的影响[J].功能材料, 2007, 38(增1): 986-988.
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