Abstract
The formation of a superlattice in theα-phase of Cu-12.4wt% Al alloy was studied during cooling. Specimens cooled at different rates were examined using electron microscopy and differential thermal analysis. The superlattice structure formed was described by means of theD-parameter which determines the position of superspots in the reciprocal lattice. Variation of theD-parameter with cooling rate has a linear form, hence it may be concluded that the superlattice in theα-phase is formed as a transitional structure. The relationship between theD-parameter and enthalpy suggests that the latter can be taken as a measure of superstructure development.
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Lelatko, J., Kwarciak, J., Bojarski, Z. et al. The effect of cooling rate on α-phase ordering in Cu-12.4wt% Al alloy. J Mater Sci 20, 3529–3534 (1985). https://doi.org/10.1007/BF01113759
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DOI: https://doi.org/10.1007/BF01113759