کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5436265 1509548 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Branched needle microstructure in Ni-Mn-Ga 10M martensite: EBSD study
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Branched needle microstructure in Ni-Mn-Ga 10M martensite: EBSD study
چکیده انگلیسی

Interaction of conjugate twin boundaries under applied stress was studied using electron backscatter diffraction in the scanning electron microscope. Compression and unloading resulted in a recoverable strain. EBSD maps and BSE images reveal a branched needle microstructure inside and outside the central triangle domain. Type I twin boundaries are mostly observed inside the central domain while some type II twin boundaries can be predominantly detected outside. Moreover, a characteristic branching of modulation domains close to the intersection of conjugate boundaries is observed. A mechanism of twin annihilation based on the rigid body rotation is proposed. The shape and distribution of stress-induced twins is explained by minimizing of elastic energy.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 128, 15 April 2017, Pages 113-119
نویسندگان
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