Determination of the liquidus and solidus temperatures of FeCrAl stainless steel
来源期刊：International Journal of Minerals Metallurgy and Materials2015年第11期
论文作者：Zhi-biao Han Jian-hua Liu Yang He Kang-wei Li Yi-long Ji Jian Liu
文章页码：1141 - 1148
摘 要：The liquidus and solidus temperatures of Fe Cr Al 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°C, were more accurate than those calculated using Thermo-calc, which exhibited a maximum deviation of 12.11°C. 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.
Zhi-biao Han，Jian-hua Liu，Yang He，Kang-wei Li，Yi-long Ji，Jian Liu
Research Institute of Metallurgy Engineering, University of Science and Technology Beijing
摘 要：The liquidus and solidus temperatures of Fe Cr Al 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°C, were more accurate than those calculated using Thermo-calc, which exhibited a maximum deviation of 12.11°C. 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.
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