摘要
通过采用锰铁、硅铁合金预脱氧,钛、锆单独或复合终脱氧的脱氧制度,研究了某低碳钢种脱氧后,钢中夹杂物的形貌、成分、尺寸分布情况。结果表明:采用Zr、Ti脱氧可以获得尺寸较小且数量较多的夹杂物粒子,加Ti后试样中的夹杂物主要为TixOy,Al2O3,MnS的复合夹杂;加Zr试样,钢中夹杂物主要为ZrxOy,SiO2,Al2O3,MnS系复合夹杂;复合添加Ti、Zr的试样,其夹杂物主要为ZrxOy,TixOy,SiO2,Al2O3,MnS复合夹杂物。Zr,Ti复合氧化物粒子能促进晶内针状铁素体形成。
In this experiment, the titanium and zirconium were added to the steel, alone or composite addition. The morphology, composition and the size of inclusions was observed. The results showed that we could got a smaller size and a larger number of inclusion particles when titanium and zirconium were added. Inclusions mainly contained TixOy, Al2O3 and MnS when the titanium compound was added. And when added the zirconium, the inclusions mainly contained ZrxOy, SiO2, Al2O3, MnS. Added the titanium zirconium compound to steel could form the complex inclusions of ZrxOy, TixOy,SiO2, Al2O3, MnS. Tragranular acicular ferrite was formed when titanium zirconium compound added.
出处
《炼钢》
CAS
北大核心
2015年第3期59-62,78,共5页
Steelmaking
关键词
炼钢
针状铁素体
夹杂物
脱氧
steelmaking
acicular ferrite
inclusions
deoxidation
