Texture development and dislocation activities in Mg-Nd and Mg-Ca alloy sheets

نویسندگان

چکیده

Texture modification during sheet rolling appears differently in binary Mg-RE (rare-earth) or Mg-Ca alloy, compared to their ternary counterparts containing Zn. The differences texture development and the active deformation mechanisms under tensile loading were investigated alloys. These analyses are based on in-situ synchrotron experiments electron backscatter diffraction measurements reveal direct experimental evidence of mechanisms. Higher activations nonbasal pyramidal dislocations found Nd Ca Mg alloys, Mg-Zn alloy. shows an obvious feature, which is a broadening basal pole intensity distribution perpendicular direction strengthening < 10 1 ¯ 0 > at all examined sheets. This relates higher activation prismatic slip. addition Zn alloys further promotes dislocations. enhanced slip confirmed by EBSD misorientation analysis. • High dislocation sole Ca, Notably Zn-Nd -Ca, Discussion about quantitative contribution activities initial deformed textures

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ژورنال

عنوان ژورنال: Materials Characterization

سال: 2021

ISSN: ['1044-5803', '1873-4189']

DOI: https://doi.org/10.1016/j.matchar.2021.111044