کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
828034 1470279 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structure-induced microalloying effect in multicomponent alloys
ترجمه فارسی عنوان
اثر میکرولیلیشی ناشی از ساختار در آلیاژهای چند جزء
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی


• Microalloying Zr in the NiNb alloy leads to the enhanced glass-forming ability.
• We propose a new parameter which counts fraction of the five-connected shell atoms.
• Such structural parameter is closely associated with the glass-forming ability.
• It is a new criterion to evaluate the GFA of metallic glasses from the atomic structure perspective.

In this work, the microalloying effect on glass-forming ability (GFA) has been investigated from the structural aspect, by performing synchrotron radiation X-ray diffraction and absorption measurements coupled with simulations in the NiNbZr ternary system. By sorting out the preferred Voronoi clusters, we propose a new structural parameter which counts the fraction of the five-connected shell atoms in clusters and find it is strongly associated with the GFA. In particular, this structural parameter has the highest value in a composition where the best GFA is achieved. The present work provides an in-depth understanding of microalloying-induced high GFAs in multicomponent alloys.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 103, 5 August 2016, Pages 308–314
نویسندگان
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