Observations of Contraction Twin Boundaries of High-Purity Titanium during Dynamic Loading
نویسندگان
چکیده
High-purity titanium has been subjected to dynamic compression with a strain rate of 103 s−1 activate {112-2} and {112-4} contraction twins. Electron backscatter diffraction (EBSD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM) were performed observe the morphologies twin boundaries The results show that twins are predominant twinning mode, as well formation due change in local stress state at intersection region variants or grain boundary. HRTEM observations reveal (0001)‖(1122-) facets (0001)‖(1121-) formed along boundaries, respectively. According theory interfacial defects, propagation boundary was discussed (b3, 3h{112-2}) (b1, h{112-2}) disconnections, growth process
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ژورنال
عنوان ژورنال: Metals
سال: 2023
ISSN: ['2075-4701']
DOI: https://doi.org/10.3390/met13020265