Determination of Solidification Parameters Used for the Prediction of the Thixoformability of Several Steel Alloys

Jacqueline Lecomte-Beckers; Ahmed Rassili; Marc Robelet; Claude Poncin; R. Koeune

doi:10.4028/www.scientific.net/SSP.116-117.54

Paper Titles

Experimental Determination of the Parameters for Modelling Semi-Solid Processing
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Interaction of Key Variables During Rheocasting: Importance of Microstructure, Fraction Solid and Flow Velocity
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Semi Solid Casting and Forging of Steel
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Development of an Advanced Rheocasting Process and Its Applications
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Determination of Solidification Parameters Used for the Prediction of the Thixoformability of Several Steel Alloys
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Design and Production of New Aluminum Thixotropic Alloys for the Manufacture of Structural Components by Semisolid Die Casting
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Application of the Continuous Rheoconversion Process (CRP^TM) to Low Temperature HPDC-Part II: Alloy Development & Validation
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Development of Heat Resistant Mg-Al-Ca Based Alloys for Casting and Semi-Solid Forming
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Thixoforming and Industrial Application of the Semi-Solid Alloy Al-6Si-2Mg
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Determination of Solidification Parameters Used for the Prediction of the Thixoformability of Several Steel Alloys

Abstract:

This paper focuses on the liquid fraction curves of several steels and the correlation between liquid fraction, temperature and heating rate. The work has been performed along two main axes. First, the solid fraction versus temperature has been obtained experimentally by differential scanning calorimetry (DSC), limited to low heating rates. Then, a shift of the liquid fraction curves has been noticed at high industrial heating rates. The quantification of this effect could not be carried out by DSC and required the elaboration of another experimental device.