کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7899917 | 1510356 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Vitrification, crystallization, and atomic structure of deformed and quenched Ni60Nb40 metallic glass
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Vitrification, crystallization, and atomic structure of deformed and quenched Ni60Nb40 metallic glass Vitrification, crystallization, and atomic structure of deformed and quenched Ni60Nb40 metallic glass](/preview/png/7899917.png)
چکیده انگلیسی
A Ni60Nb40 alloy was vitrified from fcc Ni and bcc Nb by cold rolling and by rapid solidification of an alloy ingot. The Ni60Nb40 that was vitrified by rolling has a lower crystallization onset temperature with single crystallization reaction compared to the two-stage crystallization at higher temperature for quenched Ni60Nb40. Fluctuation electron microscopy and hybrid reverse Monte Carlo modeling show that the as-rolled Ni60Nb40 contains fewer icosahedral-like Voronoi clusters and more crystal-like and bcc-like Voronoi clusters, which are inherited from the bcc Nb. The crystal-like and bcc-like medium range order clusters may be the structural origin for lower crystallization temperature in the as-rolled glass. It is demonstrated that hybrid reverse Monte Carlo simulations incorporating fluctuation microscopy and an empirical interatomic potential are insensitive to the starting structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 491, 1 July 2018, Pages 133-140
Journal: Journal of Non-Crystalline Solids - Volume 491, 1 July 2018, Pages 133-140
نویسندگان
Pei Zhang, Zhe Wang, John H. Perepezko, Paul M. Voyles,