Investigation of formation of precipitates and solidification temperatures of ferritic stainless steels using differential scanning calorimetry and Thermo-Calc simulation
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Date
2021
Authors
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Publisher
Indian Academy of Sciences
Abstract
The phase transformations in unstabilized and stabilized ferritic stainless steels during solidification
were studied using Thermo-Calc and differential scanning calorimetry (DSC). The solidus and liquidus temperatures
of the Thermo-Calc simulations were compared to the liquidus and solidus temperatures measured
with DSC. Thermo-Calc software revealed the precipitates of the ferritic stainless steels to be MnS, TiN,
Ti4C2S2, NbC, and Ti(C,N). Given the low volume fraction of precipitates, DSC could not be used to reveal the
onset of precipitation. There was reasonable correlation between the liquidus and the solidus temperature, as
calculated using Thermo-Calc and as measured using DSC. Generally, a higher niobium content resulted in a
higher solidification temperature range
Description
Research Article
Keywords
Thermo-Calc, differential scanning calorimetry (DSC], ferritic stainless steel, solidification temperature range, solidus and liquidus