Thermodynamic Research of MnS Precipitation in the Process of the Slab Continuous Cast
The article made use of thermo-calc thermodynamic software simulating the solidification process of AH32.Through the thermodynamic calculation,we can draw the conclusion that most of MnS inclusions are precipitated below the solidificational temperature as the result of the enrichment of manganese and sulfide in the grain boundary.The morphology of MnS was observed by using SEM of QUANT-400,we can concluded that 1/4 zone in the thickness direction of the slab was the key position of MnS precipitation,which are the major reason of the crack of slab.Through the measures of Calcium handling and Electromagnetic stirring in the steel making process,the middle crack defects have been improved obviously.
inner crack thermodynamic manganese sulfide segregation
Zhang Ning Guo Xiaobo Zhao Cheng-lin Zhang Wei-wei Wang Li-juan Liao Xiang-wei
Technology Center of Angang Steel Co., Ltd., Anshan 114009, Liaoning, China
国际会议
The 4th Australia-China-Japan Joint Symposium on Iron and Steelmaking(第四届中日澳钢铁冶金学术会议)
沈阳
英文
284-290
2012-11-03（万方平台首次上网日期，不代表论文的发表时间）