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。
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.
作者
李景才
辛燕
Li Jingcai;Xin Yan(Department of Mechanical and Electrical Engineering,Shangqiu Vocational and Technical College,Shangqiu 476000,Henan,China)
出处
《钢铁钒钛》
CAS
北大核心
2021年第4期156-161,共6页
Iron Steel Vanadium Titanium
关键词
无取向电工钢
钛元素
磁感应强度
铁损
non-oriented electrical steel
titanium element
magnetic induction
iron loss
