Influence of thermal treatment on structure development and mechanical properties of amorphous Fe73.5Cu1Nb3Si15.5B7 ribbon

Autor(en)

Aleksandra Gavrilovic, Lidija Rafailovic, Dusan M. Minic, Jaroslaw Wosik, Paul Angerer, Dragica M. Minic

Abstrakt

Ribbon-shaped amorphous samples with the stoichiometric composition Fe73.5Cu1Nb3Si15.5B7 prepared by the melt spinning process were annealed at temperatures ranging from 693K to 1123K for 1 h under vacuum. In the early annealing stage, the alloy undergoes a specific nucleation process where Cu clusters precipitate from an amorphous matrix. Further heating initiates the partial crystallization of alloy forming the alpha-Fe-Si nanocrystallites. Subsequent Vickers hardness tests showed high values depending on the annealing temperature. It was found that the hardening process includes two stages. This behavior correlates well with results of density dislocation calculations. A crystallite size of 10nm for the alpha-Fe-Si particles correlated very well with a maximum hardness of the material.

Organisation(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

Kompetenzzentrum für elektrochemische Oberflächentechnologie GmbH , Military Technical Institute (MTI), University of Belgrade

Seiten

119-122

Anzahl der Seiten

4

DOI

https://doi.org/10.1016/j.jallcom.2010.11.118

Publikationsdatum

2011

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/92360cf8-68de-43c4-8686-3feac65bb9da