کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1599695 | 1515844 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Deformation mechanism of Ni54Mn25Ga20.9Gd0.1 high-temperature shape memory alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Deformation mechanism of Ni54Mn25Ga20.9Gd0.1 high-temperature shape memory alloy Deformation mechanism of Ni54Mn25Ga20.9Gd0.1 high-temperature shape memory alloy](/preview/png/1599695.png)
چکیده انگلیسی
Ni54Mn25Ga20.9Gd0.1 polycrystalline high-temperature shape memory alloy displayed high compressive fracture strain of 24.6% and large shape memory effect of 7.5%. However, its deformation mechanism was still unknown. In this paper, the structure revolution characterized by XRD and TEM indicated a new deformation mechanism different before was found. The deformation process of Ni54Mn25Ga20.9Gd0.1 alloy could be divided into four stages, including elastic deformation of non-modulated tetragonal martensite (T), stress-induced T to seven-layered modulated martensite (7Â M) transformation, variants reorientation of 7Â M, and elastic-plastic deformation of reoriented 7Â M. The 7Â M formed by compression deformation disappeared completely after heating to the temperature above Af.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 67, December 2015, Pages 52-55
Journal: Intermetallics - Volume 67, December 2015, Pages 52-55
نویسندگان
Xin Zhang, Jiehe Sui, Wei Cai, Qingsuo Liu, Ailian Liu,