Pinning of nanocrystals growth at Fe-Ni-B amorphous alloy crystallization: Atom probe investigations

被引：9
|
作者：
Glezer, A. M. [1 ,4 ]
Gorshenkov, M. V. [1 ]
Zhukov, D. G. [1 ]
Korchuganova, O. A. [2 ]
Aleev, A. A. [2 ]
Boll, Torben [3 ]
Shurygina, N. A. [4 ]
Shchetinin, I. V. [1 ]
机构：
[1] Natl Univ Sci & Technol MISiS, Moscow 119049, Russia
[2] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia
[3] Chalmers Univ Technol, Dept Appl Phys, SE-41296 Gothenburg, Sweden
[4] IP Bardin Sci Inst Ferrous Met, Moscow 105005, Russia
来源：
MATERIALS LETTERS | 2015年 / 160卷
基金：
俄罗斯科学基金会;
关键词：
Fe-Ni-B; Amorphous materials; Crystallization; Three-dimensional atom probe (3DAP); MAGNETIC-PROPERTIES;
D O I：
10.1016/j.matlet.2015.07.153
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The crystallization processes in Fe50Ni33B17 amorphous alloy have been investigated by transmission electron microscopy (TEM) and a three dimensional atom probe (3DAP). The gamma-Fe,Ni FCC crystals, 25 nm in size, were found in the amorphous alloy annealed at temperatures ranging 360-400 degrees C for 1 h. TEM demonstrates that the nanocrystals growth stops as the temperature rises. The formation of an amorphous layer enriched in boron at the border of gamma-Fe,Ni nanocrystals responsible for the pinning of nanocrystals size was observed by 3DAP. The composition of an amorphous barrier by 3DAP was found to be Fe50Ni29B21. It was proposed that this composition reveals higher crystallization temperature, which is the reason of pinning nanocrystals growth. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：339 / 342
页数：4
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