کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5460858 | 1516196 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Transformation process dependent magnetocaloric properties of annealed Ni50Mn18Cu7Ga25 ribbons
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
The properties related to magnetocaloric effect (MCE) of annealed Ni50Mn18Cu7Ga25 ribbons were studied in connection with their microstructural features and magnetostructural transformations. The differences in magnetic entropy change between the reverse and direct austenite-to-martensite transformation processes lie in the magnetic field induced martensitic transformation. It occurs uniquely during the direct transformation but not reciprocal in the reverse transformation, which results in the relatively lower value of maximum ÎSM but higher δTFWHM of the ÎSM curve for the direct transformation (ÎSM = 17.8 Jkgâ1Kâ1, δTFWHM = 6 K) with respect to those of the reverse transformation (ÎSM = â32.1 Jkgâ1Kâ1, δTFWHM = 3 K) under magnetic field change μoÎH of 5 T. These transformation singularities have a deep connection with the microstructural configurations of the parent and product phases. The present study provides fundamental information necessary to understand the transformation dependent MCE of ferromagnetic functional alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 698, 25 March 2017, Pages 731-738
Journal: Journal of Alloys and Compounds - Volume 698, 25 March 2017, Pages 731-738
نویسندگان
Naifu Zou, Zongbin Li, Yudong Zhang, C.F. Sánchez-Valdés, J.L. Sánchez Llamazares, Claude Esling, Bo Yang, Xiang Zhao, Liang Zuo,