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Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/1861
Title: Influence of Microstructure on Microhardness of Fe<inf>81</inf>Si <inf>4</inf>B<inf>13</inf>C<inf>2</inf> Amorphous Alloy after Thermal Treatment
Authors: Minić, Dragica 
Blagojević, Vladimir A.
Minić, Dušan M.
Gavrilović, Aleksandra
Rafailović, Lidija
Žak, Tomaš
Issue Date: 1-Dec-2011
Journal: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Abstract: 
The influence of microstructure, and its changes, on microhardness of the amorphous Fe81Si4B13C2 alloy after thermal treatment at different temperatures from 298 K to 973 K (25 °C to 700 °C) was studied. The as-prepared alloy ribbon containing a small amount of crystalline phases, as well as domains of short-range crystalline ordering embedded in the amorphous matrix, exhibits unexpectedly high microhardness, mostly due to its composition. After thermal treatment above 723 K (450 °C), the alloy samples begin to crystallize, creating a nanocomposite structure involving nanocrystals embedded in an amorphous matrix, leading to an increase in microhardness. Further growth of the nanocrystals, as the heating temperature was increased to 973 K (700 °C), caused the change from nanocomposite structure into a more granulated and porous structure, with a dominant type of interface changing from amorphous/crystal to crystal/crystal, leading to a decrease in microhardness. © 2011 The Minerals, Metals & Materials Society and ASM International.
URI: https://dspace.ffh.bg.ac.rs/handle/123456789/1861
ISSN: 1073-5623
DOI: 10.1007/s11661-011-0795-8
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University of Belgrade
Faculty of Physical Chemistry
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PAC 105305
SERBIA
University of Belgrade Faculty of Physical Chemistry