Influence of milling container internal geometry on the mechanical alloying process of the Fe75Si15B10 system

57Fe Mossbauer spectroscopy and X-ray diffraction were used to study the influence of container internal geometry (flat-endings or round-endings) on the mechanical alloying process of the Fe75Si15B10 system. The Mossbauer spectrum for the sample processed for 19h in a round-endings container indicat...

Full description

Saved in:
Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2006-08, Vol.429 (1-2), p.261-265
Main Authors: PENA RODRIGUEZ, V. A, QUISPE MARCATOMA, J, AGÜERO ANDRADE, J. M, BAGGIO-SAITOVITCH, E. M, CAYTUEROS VILLEGAS, A, PASSAMANI, E. C
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Metal powders
Metals. Metallurgy
Powder metallurgy. Composite materials
Production techniques
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:57Fe Mossbauer spectroscopy and X-ray diffraction were used to study the influence of container internal geometry (flat-endings or round-endings) on the mechanical alloying process of the Fe75Si15B10 system. The Mossbauer spectrum for the sample processed for 19h in a round-endings container indicates the formation of an amorphous Fe-B-Si phase, with 96% of the Fe total volume. Oppositely, the alloy processed in a flat-endings container for 12h has a spectrum with 82% of Fe atoms in nanocrystalline Fe,Si and Fe2B phases and the remaining 18% are dispersed at the disordered grain boundary region (amorphous state). This result suggests that a single phase alloy is hard to be obtained in this container. It is also shown that the samples processed in the flat-endings container can be de-mixed to alpha-Fe phase by milling at times above 18h. The sample preparation procedures have been repeated twice in order to prove the results reproducibility.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2006.05.067