Pinning of nanocrystals growth at Fe-Ni-B amorphous alloy crystallization: Atom probe investigations
Artikel i vetenskaplig tidskrift, 2015

The crystallization processes in Fe 50 Ni 33 B 17 amorphous alloy have been investigated by transmission electron microscopy (TEM) and a three dimensional atom probe (3DAP). The γ-Fe,Ni FCC crystals, 25 nm in size, were found in the amorphous alloy annealed at temperatures ranging 360-400 °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 γ-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 Fe 50 Ni 29 B 21 . It was proposed that this composition reveals higher crystallization temperature, which is the reason of pinning nanocrystals growth.

Amorphous materials

Fe-Ni-B

Crystallization

Three-dimensional atom probe (3DAP)

Författare

A. M. Glezer

National University of Science & Technology (MISIS)

Bardin Institute for Ferrous Metallurgy

M. V. Gorshenkov

National University of Science & Technology (MISIS)

D. G. Zhukov

National University of Science & Technology (MISIS)

O. A. Korchuganova

National Research Nuclear University

A. A. Aleev

National Research Nuclear University

Torben Boll

Chalmers, Teknisk fysik, Materialens mikrostruktur

N. A. Shurygina

Bardin Institute for Ferrous Metallurgy

I. V. Shchetinin

National University of Science & Technology (MISIS)

Materials Letters

0167-577X (ISSN)

Vol. 160 339-342 19351

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1016/j.matlet.2015.07.153

Mer information

Skapat

2017-10-07