THERMODYNAMIC PARAMETERS IN THE NUCLEATION OF LIQUID IRON

查看全文 作　　者：[1]C.Huang;[1]B.Song;[1]J.H.Mao;[1]Q.Lin;[2]P.Zhao 机构地区：[1]UniversityofScienceandTechnologyBeijing,Beijing100083,China;[2]CentralIronandSteelResearchInstitute,Beijing100081,China 出　　处：《Acta Metallurgica Sinica(English Letters)》索引2003年第16卷第6期,共5页 基　　金：sponsored by National 973 Research Program(No.J1998061511-2). 摘　　要：By using of electrolytic pure iron, the specimens containing different oxide content were made in a Mo wire furnace. The DTA method was employed to measure the undercooling of liquid iron during solidification. The relations between the cleanness of liquid iron and undercooling, thermodynamic driving force of nucleation, the nucleus forming energy, as well as the critical radius of nucleus have been investigated. The results showed that with the increase of cleanness of liquid iron the undercooling and thermodynamic driving force increased, while the nucleus forming energy and critical radius of nucleus decreased. 关 键 词：炼铁 热力学参数 DTA 纯铁 数据包络分析