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A study of densification and phase transformations of nanocomposite Cu-Fe prepared by mechanical alloying and consolidation process

The purpose of this study is an attempt to obtain nanocrystalline bulk Cu-40 at.% Fe alloy by mechanical alloying followed by consolidation process under 7 GPa and annealing. The transformations occurring in the material were studied by the use of X-ray diffraction. The structural investigations revealed that consolidation enabled supersaturated Cu(Fe) to precipitate out Cu4Fe and CuFe4 intermetallics. A limited grain growth was noticed after annealing. The results of microhardness have shown that the hardening increases similarly up to 40 h milling. The variation of microhardness as a function of the reciprocal square root of the grain size demonstrates that the rate of hardening is similar to that predicted by the Hall-Petch behavior

This study was supported by financial funds from the MAT2013-47231-C2-2-P project

© International Journal of Advanced Manufacturing Technology, 2016, vol. 87, núm. 1, p. 981-987

Springer Verlag

Author: Azabou, M.
Makhlouf, T.
Khitouni, M.
Saurina i Canals, Joan
Escoda i Acero, Ma. Lluïsa
Suñol Martínez, Joan Josep
Date: 2016 October 1
Abstract: The purpose of this study is an attempt to obtain nanocrystalline bulk Cu-40 at.% Fe alloy by mechanical alloying followed by consolidation process under 7 GPa and annealing. The transformations occurring in the material were studied by the use of X-ray diffraction. The structural investigations revealed that consolidation enabled supersaturated Cu(Fe) to precipitate out Cu4Fe and CuFe4 intermetallics. A limited grain growth was noticed after annealing. The results of microhardness have shown that the hardening increases similarly up to 40 h milling. The variation of microhardness as a function of the reciprocal square root of the grain size demonstrates that the rate of hardening is similar to that predicted by the Hall-Petch behavior
This study was supported by financial funds from the MAT2013-47231-C2-2-P project
Format: application/pdf
ISSN: 0268-3768 (versió paper)
1433-3015 (versió electrònica)
Document access: http://hdl.handle.net/10256/13735
Language: eng
Publisher: Springer Verlag
Collection: MINECO/PE 2014-2016/MAT2013-47231-C2-2-P
Reproducció digital del document publicat a: http://dx.doi.org/10.1007/s00170-016-8551-2
Articles publicats (D-F)
Is part of: © International Journal of Advanced Manufacturing Technology, 2016, vol. 87, núm. 1, p. 981-987
Rights: Tots els drets reservats
Subject: Aliatges
Alloys
Raigs X -- Difracció
X-rays -- Diffraction
Ferro -- Aliatges
Iron alloys
Title: A study of densification and phase transformations of nanocomposite Cu-Fe prepared by mechanical alloying and consolidation process
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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