Theoretical prediction and experimental evidence for thermodynamic properties of metastable liquid Fe-Cu-Mo ternary alloys

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摘要

The prediction of thermodynamic properties for metastable undercooled liquid is important in the research on liquid structure and phase transition. Here we report the theoretical prediction of specific heat for metastable undercooled liquid Fe-Cu-Mo ternary alloys with a molecular dynamics method. Furthermore, experimental measurements were also performed by electromagnetic levitation drop calorimeter to confirm the predicted results. For liquid Fe 78Cu15Mo7 and Fe71.5Cu 3.5Mo25 alloys, the calculated specific heat values are 37.5 and 36.3 J mol-1 K-1, which agree well with the experimental results of 40.0 and 38.3 J mol-1 K-1, respectively. The computed undercooling range of about 700 K is sufficiently broader than the experimental regime of 223 K.

源语言英语
文章编号171904
期刊Applied Physics Letters
93
17
DOI
出版状态已出版 - 2008

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