Inclusion Control in 55SiCr Spring Steels
55SiCr is one of the important spring steels widely used in automobile manufacturing.The presence of micro inclusions in the steel can significantly influence a number of spring properties such as fatigue strength.It is important to understand the mechanisms of the inclusion formation so that size and proportion of the inclusions can be controlled.Inclusions in two 55SiCr spring steels deoxidized by different processes have been analysed by electron probe X-Ray microanalysis.The sizes and compositions of the inclusions in two steels are significantly different.The chemistry of the inclusions observed in 55SiCr steels can be represented by the SiO2-Al2O3-CaO-MgO system.The liquidus temperatures and viscosities relevant to the refining slags and inclusions have been discussed.It would be possible to use these fundamental properties to characterize and manage the inclusions in the steels produced by different deoxidation processes.
55SiCr spring steel inclusion phase equilibrium viscosity
Zhao Baojun Huang Zongze Yao Zan Wang Geoff Jiang Zhouhua
School of Chemical Engineering,The University of Queensland,Brisbane,Australia Baoshan Iron and Steel Co.,Ltd.,Shanghai,China School of Materials and Metallurgy Northeastern University,Shenyang,China
国内会议
上海
英文
1-6
2015-10-21（万方平台首次上网日期，不代表论文的发表时间）