Computer Modelling of the Order–Disorder Transformation in Cu₃Au and Ni₃Fe

Abstract The problem of the type definition of phase transition is discussed on the example of order–disorder transformation modelling by the Monte‐Carlo method. The discrepancy of the transition temperature of stationary state distributions which were obtained from high‐and low‐temperature chains defines the phase transition type. Necessity of metastable phase overcooling or overheating at the first‐order transition results in the dependence of the critical state of the substance on that one preceeding the transition in the critical one.

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