钛含量对无取向电工钢组织和磁性能的影响

李景才; 辛燕

doi:10.7513/j.issn.1004-7638.2021.04.026

钛含量对无取向电工钢组织和磁性能的影响

doi: 10.7513/j.issn.1004-7638.2021.04.026

李景才,
辛燕

商丘职业技术学院机电工程系，河南商丘 476000

详细信息

作者简介:
李景才（1982−），男，汉族，讲师，主要研究方向：材料研发及机械制造，E-mail：411785183@qq.com

中图分类号: TF823, TG142.1
计量
- 文章访问数: 391
- HTML全文浏览量: 59
- PDF下载量: 37
- 被引次数: 0
出版历程
- 收稿日期: 2021-01-10
- 刊出日期: 2021-08-10

Effect of Ti on microstructure and magnetic properties of non-oriented electrical steel

Li Jingcai,
Xin Yan

Department of Mechanical and Electrical Engineering, Shangqiu Vocational and Technical College, Shangqiu 476000, Henan, China

摘要

摘要: 以实验室冶炼的不同钛含量的无取向电工钢为原材料，采用退火炉、透射电镜、金相组织观察和磁性能测试等手段就钛含量对无取向电工钢组织和性能的影响进行了研究。结果表明：试样的晶粒尺寸随其钛含量增加而减小，当钛含量小于0.015%时，试样的晶粒组织呈等轴状，均匀性较高，其中的钛以碳氮化物形式析出，且钉扎于组织的晶界处；随着钛含量提高至0.015%以上，其组织中的晶粒形变明显，钛以铁-钛磷化物形式析出于晶内和晶界上。添加微量的钛（ ≤0.015%）可改善电工钢的磁感应强度和铁损，铁损W_15/50约4.6～5.2 W/kg，磁感应强度B₅₀约1.74～1.76 T，但需严格避免钛含量的过量添加。
- 无取向电工钢 /
- 钛元素 /
- 磁感应强度 /
- 铁损
Abstract: In this paper, the effect of titanium content on the microstructure and properties of non oriented electrical steel with different titanium content was studied by means of annealing furnace, transmission electron microscope, metallographic observation and magnetic property test. The results showed that the grain size of electrical steel decreased with the increase of titanium content. When the content of titanium was less than 0.015%, the grain was equiaxed with a higher uniformity. The titanium precipitated in the form of carbonitride and was pinned at the grain boundary of the structure. With the increase of Ti content to more than 0.015%, the grains in the microstructure were obviously deformed, and Ti precipitated out of the grain boundary and in the grain boundary by Fe-Ti phosphide. The magnetic induction and iron loss of electrical steel could be slightly improved by adding a small amount of titanium ( ≤ 0.015%). The iron loss W_{15 / 50} was about 4.6～5.2 W/kg, and the magnetic induction B₅₀ was about 1.74～1.76 T. However, excessive addition of titanium should be strictly avoided.
- non-oriented electrical steel /
- titanium element /
- magnetic induction /
- iron loss

HTML全文

图 1 热处理连续退火工艺

Figure 1. Continuous annealing parameters of heat treatment

下载: 全尺寸图片幻灯片

图 2 试验钢经退火后的金相组织

Figure 2. Microstructure of tested steels after annealing

下载: 全尺寸图片幻灯片

图 3 试样退火后的透射电镜形貌

(a)试样1^#；(b)试样5^#；(c)试样9^#

Figure 3. TEM images of Ti bearing steels after annealing

下载: 全尺寸图片幻灯片

图 4 铁损W_15/50与钛含量的关系曲线

Figure 4. Relationship between iron loss W_15/50 and titanium content

下载: 全尺寸图片幻灯片

图 5 磁感强度B₅₀与钛含量的关系曲线

Figure 5. Relationship between the intensity of magnetic induction B₅₀ and the content of titanium

下载: 全尺寸图片幻灯片

图 6 各试样退火前的微观组织

Figure 6. Microstructure of individual steels before annealing

下载: 全尺寸图片幻灯片

图 7 退火前试样反极图强度与钛含量的关系

Figure 7. Relationship between strength of reverse pole diagram and titanium content in steels before annealing

下载: 全尺寸图片幻灯片

图 8 退火后试样反极图织构强度与钛含量的关系

Figure 8. Relationship between strength of reverse pole diagram and titanium content in steels after annealing

下载: 全尺寸图片幻灯片

表 1 试验钢的主要化学成分

Table 1. Main chemical compositions of tested steels %

	C	Si	Mn	P	S	Als	Ti	N	O
1^#	<0.0010	0.30	0.29	0.100	0.0042	0.27	≤0.001	0.0013	0.0032
2^#	<0.0010	0.32	0.30	0.098	0.0041	0.28	0.002	0.0015	0.0018
3^#	<0.0010	0.33	0.28	0.098	0.0045	0.26	0.004	0.0013	0.0010
4^#	<0.0010	0.32	0.30	0.097	0.0042	0.26	0.005	0.0013	0.0024
5^#	<0.0010	0.32	0.29	0.098	0.0042	0.27	0.009	0.0014	0.0022
6^#	<0.0010	0.28	0.29	0.098	0.0044	0.27	0.015	0.0013	0.0011
7^#	<0.0010	0.29	0.28	0.100	0.0042	0.26	0.042	0.0012	0.0026
8^#	<0.0010	0.32	0.30	0.098	0.0045	0.28	0.072	0.0013	0.0032
9^#	<0.0010	0.29	0.29	0.097	0.0042	0.27	0.118	0.0011	0.0012

下载: 导出CSV

参考文献(11)

[1]	Dong Mei, Zhu Tao, Pei Chenxin, et al. Development and research on cold rolled semi-processed no-oriented electrical seel[J]. Electrical Engineering Materials, 2012,(1):29−33. (董梅, 朱涛, 裴陈新, 等. 半工艺冷轧无取向电工钢的开发研究[J]. 电工材料, 2012,(1):29−33. doi: 10.3969/j.issn.1671-8887.2012.01.007
[2]	Kocks U F. Texture and anisotropy: Preferred orientations in polycrystals and their effect on materials properties[M]. New York: Cambridge University Press, 1998.
[3]	Chen Yuanyang, Han Zeyin, Chen Yangsheng. Mechanical strength analysis of high speed interior permanent magnet motor[J]. Small and Special Electrical Machines, 2012,40(5):5−9. (陈远扬, 韩则胤, 陈阳生. 高速内嵌式永磁电动机转子机械强度分析[J]. 微特电机, 2012,40(5):5−9. doi: 10.3969/j.issn.1004-7018.2012.05.002
[4]	（高鹏越. 稀土及铌微合金化取向硅钢热轧过程中的析出及再结晶行为的研究[D]. 包头: 内蒙古科技大学, 2015.） Gao Pengyue. Study on precipitation and recrystallization behavior of RE and Nb microalloyed oriented silicon steel during hot rolling[D]. Baotou: Inner Mongolia University of Science and Technology, 2015.
[5]	Zhu Wenying. Effect of some elements on magnetic properties of oriented silicon steel[J]. Electrical Steel, 2002,48(2):18−20. (朱文英. 某些元素对取向硅钢磁性能的影响[J]. 电工钢, 2002,48(2):18−20.
[6]	Yan Bin, Zhu Chengxin, Zhang Yunxiang. Effect of Nb on precipitation behavior of inhibitor in hot rolled plate of oriented silicon steel[J]. Hot Working Process, 2019,48(1):14−16, 21. (严彬, 朱诚意, 张云祥. Nb对取向硅钢热轧板中抑制剂析出行为的影响[J]. 热加工工艺, 2019,48(1):14−16, 21.
[7]	Xie Li, Lin Yuan, Zhang Wenkang. Effect of niobium on mechanical and magnetic properties of 0.5% Si steel[J]. Hot Working Process, 2016,45(24):62−64, 67. (谢力, 林媛, 张文康. 铌对0.5%Si钢力学性能和磁性能的影响[J]. 热加工工艺, 2016,45(24):62−64, 67.
[8]	Pei Ruilin, Zeng Lubin, Chen Xiao, et al. Studies of high-efficiency electrical steels used in electric vehicle motors[J]. Journal of Shanghai Jiaotong University, 2012,17(3):319−322. doi: 10.1007/s12204-012-1277-x
[9]	Jin Zili, Qi Jianbo, Han Qiang, et al. Comparison and analysis of the low grade cold rolled non-oriented silicon steel on texture and magnetic property[J]. Metallic Functional Materials, 2006,(1):1−3. (金自力, 齐建波, 韩强, 等. 低牌号冷轧无取向硅钢的织构及电磁性能的对比分析[J]. 金属功能材料, 2006,(1):1−3. doi: 10.3969/j.issn.1005-8192.2006.01.001
[10]	Yangsu Lim, Jiyum Kim. A study of the characteristics of traction moror performance for EV by electrical steel[C]//2012 2nd International Electric Drives Production Conference (EDPC). Nuremherg, 2012: 15−18.
[11]	Zhu Tao, Shi Lifa, Dong Mei, et al. Comparative analysis of effect of microstructure and texture on magnetic properties of non-oriented electrical steel produced by CSP and traditional processes[J]. Journal of Iron and Steel Research, 2009,21(11):35−37. (朱涛, 施立发, 董梅, 等. CSP与传统工艺生产无取向电工钢的组织和织构对磁性能影响与对比分析[J]. 钢铁研究学报, 2009,21(11):35−37.