Intragranular deformation mechanisms during ambient-temperature creep in hexagonal close-packed metals
作者： Tetsuya Matsunaga , Tatsuya Kameyama , Kohei Takahashi , Eiichi Sato
DOI: 10.2320/MATERTRANS.M2009224
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摘要: Intragranular deformation mechanisms were investigated for ambient-temperature creep of pure hexagonal close-packed (h.c.p.) metals, i.e. commercially titanium, magnesium and zinc, by transmission electron microscopy back-scatter diffraction pattern mapping analysis. First, straightly aligned dislocation arrays observed in all the specimens. Second, although Burgers vectors hai several slip systems observed, only one system was activated inside each grain. Third, twins that form during hinder strain. Therefore, dominant intragranular mechanism is a planner dislocations [doi:10.2320/matertrans.M2009224]
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