Structural Mechanism of Close-Packed Polytypes Formation at Displacive Type Phase Transformation in Alloys
نویسندگان
چکیده
Statistics of one-dimensional disordering of polytypes formed under phase transformation of a displacive type of Co-alloys was studied. Discovered polytypes with a short-range order in close-packed atomic layers allowed to propose a mechanism of their formation by noncoherent displacements in the initial polymorphous modification along close-packed planes. Significant dependence of polytype structures not only on alloying of an alloy but on the kinetics of a polymorphous transformation is considered as an indirect interaction of atomic layers via the impurities subsystem.
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