کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1582482 | 1514875 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Atomistic modelling of reversible phase transformations in Ni–Ti alloys: A molecular dynamics study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Ni–Ti thin films for micro actuators is the focus of intense research. Such films have precipitates with a unique micro-structure. By molecular dynamics simulation (MDS) using embedded-atom potentials, we construct nano-sized Ni–Ti model systems including plate shape precipitates. First, the energetics of such plate precipitates is evaluated. The simulations show that there is a lower energy precipitate which is actually observed in experimental studies. Second, uniaxial-tensile loading is conducted for the MDS model which contains the precipitate. For the relaxed state, the precipitate sufficiently matches the Ni–Ti parent phases at the interfaces, whereas during the loading, mismatch as well as nucleation of martensite occurs there.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 481–482, 25 May 2008, Pages 250–253
Journal: Materials Science and Engineering: A - Volumes 481–482, 25 May 2008, Pages 250–253
نویسندگان
T. Sato, K. Saitoh, N. Shinke,