Abstract
The specific heat of liquid Ni60Cu20Fe20 ternary alloy was measured by electromagnetic levitation drop calorimetry in the temperature range from 1436 to 2008K. The maximum undercooling achieved in experiment is 232K (0.14TL). The specific heat was determined as 33.27J·mol-1·K-1 which varied slightly with temperature. Furthermore，the temperature dependence of the specific heat of normal and undercooled liquid Ni60Cu20Fe20 alloy was calculated by molecular dynamics method with embedded-atom potential (EAM) and quantum Sutton-Chen many-body potential (QSC). The calculated results indicate that the specific heat increases slowly with the decrease of temperature. By comparing these theoretical calculations with experiments，we found that the QSC model is more reasonable for predicting the specific heat of liquid Ni60Cu20Fe20 alloy than the EAM model.
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