Abstract
A model for the FCC→HCP transformation is proposed. It is envisaged that the dislocation reaction\({\overline 1 }\) may govern the nucleation of six-layer HCP crystal. A macroscopic HCP region forms when these nuclei, located at different levels within a localized slipped region, growth into each other. The observed orientation dependence of the strain-induced martensite and the coexistence of HCP and twinned regions have been rationalized in terms of the proposed model. In addition, the supporting evidence has been developed by examining the crystallographic features of faulted regions in partially transformed Co-6.25 wt pct Fe alloy by transmission electron microscopy.
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M. L. GREEN, formerly with Bell Laboratories, Murray Hill, NJ
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Mahajan, S., Green, M.L. & Brasen, D. A model for the FCC→HCP transformation, its applications, and experimental evidence. Metall Trans A 8, 283–293 (1977). https://doi.org/10.1007/BF02661642
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DOI: https://doi.org/10.1007/BF02661642