Ti含量对Ti-Mo微合金钢TiN形成的影响  

Effect of Titanium Content on TiN Formation in Ti-Mo Micro-alloyed Steel

作　　者：亓伟伟 孙建卫 刘洪银 康佳 杨洪波[2] QI Weiwei;SUN Jianwei;LIU Hongyin;KANG Jia;YANG Hongbo(The Technical Center of Laiwu Branch of Shandong Iron and Steel Co.,Ltd.,Jinan 271100,China;School of Metallurgical Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China)

机构地区：[1]山东钢铁股份莱芜分公司技术中心,山东济南271100 [2]西安建筑科技大学冶金工程学院,陕西西安710055

出　　处：《山东冶金》2022年第1期41-44,共4页Shandong Metallurgy

摘　　要：以不同Ti含量的Ti-Mo微合金钢为研究对象,利用OM、SEM及EDS对试验钢夹杂物进行了研究,探索Ti含量对Ti-Mo微合金钢TiN形成的影响规律。结果表明:TiN尺寸大小与Ti含量有较大关系,其尺寸随Ti含量升高而增大;N含量过高也会产生较多大尺寸的TiN及Ti(N,C)夹杂;本实验条件下,当Ti含量≤0.1%,降低N含量至0.0030%以下时,可有效控制大尺寸TiN形成,TiN夹杂尺寸<3μm.Ti-Mo micro-alloyed steels with different Ti content were studied by OM, SEM and EDS, and the effects of Ti content on the TiN formation in Ti-Mo micro-alloyed steels were explored. The results show that the size of TiN has a great relationship with the content of Ti, and its size increases with the increase of the content of Ti. Large size TiN and Ti(N,C) inclusions can be produced when N content is too high. Under this experimental conditions, when the content of Ti is less than or equal to 0.1% and the content of N is less than 0.003 0%, the formation of large TiN can be effectively controlled, and the inclusion size of TiN is less than 3 μm.

关 键 词：TI含量 Ti-Mo微合金钢 TIN TiN尺寸 

分 类 号：TG142.1[一般工业技术—材料科学与工程]