An Assessment of Analytical Liquidus Equations for Fe-C-Si-Mn-Al-P-Alloyed Steels Using DSC/DTA Techniques
Michael Bernhard, Peter Presoly, Christian Bernhard, Susanne Hahn, Sergiu Ilie
Abstract
Abstract Analytical liquidus equations were evaluated using differential scanning calorimetry (DSC) and differential thermal analysis (DTA). Results of 180 measurements in the Fe-C-Si-Mn-Al-P subsystems were considered, where the experimental methodology was demonstrated for four alloys in the Fe-Si-Mn-Al system. Excellent agreement between the DSC/DTA dataset and the most recently published equation was found (error 2.1 ± 1.6 °C). For this equation, suggested modifications of phosphorus parameters will help to improve calculations for P-alloyed steels.
Topics & Concepts
LiquidusDifferential scanning calorimetryDifferential thermal analysisMaterials scienceAnalytical Chemistry (journal)Thermal analysisMetallurgyThermodynamicsDifferential equationThermalChemistryMathematicsMathematical analysisPhysicsDiffractionOpticsAlloyChromatographyMicrostructure and Mechanical Properties of SteelsMetallurgical Processes and ThermodynamicsMetal Alloys Wear and Properties