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Transactions of the Indian Institute of Metals

, Volume 71, Issue 11, pp 2807–2811 | Cite as

Determination of Liquid Fraction in Mg–Zn–Y Alloys: Thermal Analysis Versus Thermodynamic Approach

  • C. Muthuraja
  • I. Balasundar
  • K. R. Ravi
Technical Paper
  • 11 Downloads

Abstract

In the present study, the liquid fraction of Mg–2Zn–xY (x: 2, 4, 6) alloys as a function of temperature was determined experimentally using thermal analysis and compared with the thermodynamically calculated results. Thermodynamic calculations were made using equilibrium and Scheil solidification model in the Thermo-Calc (TCMG1 thermodynamic database). Thermodynamically calculated phases and their formation temperature for Mg–Zn–Y alloy system were found to be significantly different from the thermal analysis results. This resulted in large difference between the thermal analysis and thermodynamically calculated solidification range and eutectic knee point values. Hot-tearing-resistant alloy predicted by the thermal analysis method alone matched with the results reported in the literature.

Keywords

Mg–Zn–Y alloy Liquid fraction CALPHAD Thermal analysis 

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Copyright information

© The Indian Institute of Metals - IIM 2018

Authors and Affiliations

  1. 1.PSG Institute of Advanced StudiesCoimbatoreIndia
  2. 2.Near Net Shape Group, Aeronautical Materials DivisionDefence Metallurgical Research LaboratoryHyderabadIndia
  3. 3.Department of Metallurgical EngineeringPSG College of TechnologyCoimbatoreIndia

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