کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1666697 1518074 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Twin boundary-induced intrinsic strengthening in Ni
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Twin boundary-induced intrinsic strengthening in Ni
چکیده انگلیسی

The manuscript presents a combined experimental/simulation study of the intrinsic strengthening of the material near twin boundaries. Polychromatic X-ray micro Laue diffraction together with electron backscattering diffraction shows that dislocation slippage is suppressed near the twin boundaries. Indentation demonstrates increased hardness in the immediate vicinity of the twin boundary. Distinct slip bands are observed in the interior of the macroscopic ~ 500 μm thick twin. Fast oscillations of lattice rotations are found within each slip band. Crystal plasticity analysis using a spectral formulation finds a similar dependence of the plastic response of the matrix and the twin depending on their orientation and initial structural conditions.


► Slip blockage is observed near the twin boundary.
► Hardness increases at the twin boundary.
► Characteristic matrix/twin relationships are maintained at the twin boundary.
► Helical-like distortion is observed within the slip bands of the twin.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 530, 1 March 2013, Pages 14–19
نویسندگان
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