کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7881080 | 1509597 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Specific heat and entropy change during martensitic transformation in Ni50Mn50âxGax ferromagnetic shape memory alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Specific heat was systematically measured for Ni50Mn50âxGax ferromagnetic shape memory alloys near the martensitic transformation temperatures. Martensitic and intermediate transformations and magnetic transitions in the parent and martensite phases were directly observed via specific heat measurements. Entropy change during the intermediate transformation was successfully estimated by direct measurement. Entropy change during the martensitic transformation was also analyzed; it generally decreases with decreasing Ga concentration. Anomalous behavior of the entropy change during martensitic transformation was observed near the magnetic transitions, and was found to attributable to the magnetic contribution by a qualitative examination based on the results of specific heat measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 79, 15 October 2014, Pages 159-167
Journal: Acta Materialia - Volume 79, 15 October 2014, Pages 159-167
نویسندگان
Xiao Xu, Takeshi Kanomata, Ryosuke Kainuma,