Abstract
Investigations regarding structural, morphological, and magnetic changes induced by ball milling of Fe-50 at.% Al alloy have been carried out. The mechanical alloying process induces a progressive dissolution of Al into Fe, resulting in the nucleation and establishment of an elongated nanostructured Fe(Al) solid solution with the bcc structure only after 5 hr of milling. The average crystallite size of components decreased to ~5 nm and the components diffused to the nanograin boundaries during transition to nanostructured composite. Scanning electron microscopy and transmission electron microscopy confirmed the crystallite size determination and Fe(Al) solid solution formation obtained from X-ray diffraction analysis. The corresponding magnetic (Mössbauer and vibration sample magnetometer) studies confirm that there is magnetic behaviour retained in the FeAl alloys samples even after 5 hr of milling but magnetization decreases as the milling time increases. The ball milling process involves the loss of long range order and reduced grain size, which induces a transition from a paramagnetic to ferromagnetic state. The continuous refinement of grains and the antiphase interface grain bounderies play a major part in the observed variation in the magnetic properties.
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© 2015 Carl Hanser Verlag GmbH & Co. KG
Artikel in diesem Heft
- Frontmatter
- Original Contributions
- Microstructures of magnetron sputtered Fe–Au thin films
- Phase-field simulation of diffusion-controlled coarsening kinetics of γ’ phase in Ni–Al alloy
- Structural and magnetic evolution of ball milled nanocrystalline Fe-50 at.% Al alloy
- Structural, optical and magnetic properties of nanocrystalline zinc ferrite particles from glycine assisted combustion: Effect of Sr2+ dopant
- Correlation of plastic deformation induced intermittent electromagnetic radiation characteristics with mechanical properties of Cu–Ni alloys
- Effect of isothermal quenching methods on impact toughness and wear resistance in high boron steel
- Wear behaviour of Al/(Al2O3 + ZrB2 + TiB2) hybrid composites fabricated by hot pressing
- Regression analysis of bonding strength of sprayed coatings based on acoustic emission signal
- Effect of substrates on covalent surface modification of graphene using photosensitive functional group
- Short Communications
- Investigation of optimum nucleation temperature and heating rate of cordierite glass-ceramics
- The influence of process parameters on the preparation of CaF2@Al(OH)3 composite powder via heterogeneous nucleation
- Effect of zirconium and heat treatment on the microstructure and properties of cast chromium bronze for conductive parts
- The influence of addition of citric acid on the physical properties of metallic oxide nanorods via Sol-Gel route preparation
- Notifications
- People
- DGM News
- Conferences
Artikel in diesem Heft
- Frontmatter
- Original Contributions
- Microstructures of magnetron sputtered Fe–Au thin films
- Phase-field simulation of diffusion-controlled coarsening kinetics of γ’ phase in Ni–Al alloy
- Structural and magnetic evolution of ball milled nanocrystalline Fe-50 at.% Al alloy
- Structural, optical and magnetic properties of nanocrystalline zinc ferrite particles from glycine assisted combustion: Effect of Sr2+ dopant
- Correlation of plastic deformation induced intermittent electromagnetic radiation characteristics with mechanical properties of Cu–Ni alloys
- Effect of isothermal quenching methods on impact toughness and wear resistance in high boron steel
- Wear behaviour of Al/(Al2O3 + ZrB2 + TiB2) hybrid composites fabricated by hot pressing
- Regression analysis of bonding strength of sprayed coatings based on acoustic emission signal
- Effect of substrates on covalent surface modification of graphene using photosensitive functional group
- Short Communications
- Investigation of optimum nucleation temperature and heating rate of cordierite glass-ceramics
- The influence of process parameters on the preparation of CaF2@Al(OH)3 composite powder via heterogeneous nucleation
- Effect of zirconium and heat treatment on the microstructure and properties of cast chromium bronze for conductive parts
- The influence of addition of citric acid on the physical properties of metallic oxide nanorods via Sol-Gel route preparation
- Notifications
- People
- DGM News
- Conferences