Determination of the liquidus and solidus temperatures of FeCrAl stainless steel  

作　　者：Zhi-biao Han Jian-hua Liu Yang He Kang-wei Li Yi-long Ji Jian Liu 

机构地区：[1]Research Institute of Metallurgy Engineering, University of Science and Technology Beijing

出　　处：《International Journal of Minerals,Metallurgy and Materials》2015年第11期1141-1148,共8页矿物冶金与材料学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (No. 51374023)

摘　　要：The liquidus and solidus temperatures of FeCrAl stainless steel were determined by differential scanning calorimetry（DSC） at different heating rates. They were also calculated by Thermo-calc software and empirical formulae separately. The accuracy of calculation results was assessed by comparison with the corresponding DSC results. The liquidus temperatures calculated by empirical formulae, which exhibited a maximum deviation of 8.6℃ were more accurate than those calculated using Thermo-calc, which exhibited a maximum deviation of 12.11℃. On the basis of Thermo-calc calculations performed under the Scheil model, the solidus temperature could be well determined from solid fraction（fS） vs. temperature（t） curves at fS = 0.99. Furthermore, a theoretical analysis to determine the solidus temperature with this method was also provided.The liquidus and solidus temperatures of FeCrAl stainless steel were determined by differential scanning calorimetry（DSC） at different heating rates. They were also calculated by Thermo-calc software and empirical formulae separately. The accuracy of calculation results was assessed by comparison with the corresponding DSC results. The liquidus temperatures calculated by empirical formulae, which exhibited a maximum deviation of 8.6℃ were more accurate than those calculated using Thermo-calc, which exhibited a maximum deviation of 12.11℃. On the basis of Thermo-calc calculations performed under the Scheil model, the solidus temperature could be well determined from solid fraction（fS） vs. temperature（t） curves at fS = 0.99. Furthermore, a theoretical analysis to determine the solidus temperature with this method was also provided.

关 键 词：ferritic stainless steel liquidus temperature solidus temperature differential scanning calorimetry 

分 类 号：TG142.71[一般工业技术—材料科学与工程]