Structural and magnetic properties of nanocrystalline Fe–Co–Ni alloy processed by mechanical alloying

Raanaei, Hossein; Eskandari, H.; Mohammad-Hosseini, Vahid

doi:10.1016/j.jmmm.2015.09.031

Cited by 50 publications

(16 citation statements)

References 29 publications

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“…Moreover, D is the crystallite size, d is the effective grain-boundary thickness. In most of the nanostructured alloys, the estimated thickness of the interfaces was roughly found at 2-3 atomic layers [5,7]. The elemental analysis data are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The grain‐boundary affects the movement of dislocation and strain hardening significantly. On the basis of the coherent polycrystalline model [7], the volume fraction of the grain boundaries f gb was estimated by the formula

f_{normalgb} = 1 - f_{g}

where f g denotes the volume fraction of the grains given by

f_{g} = \frac{{false(D - d false)}^{3}}{D^{3}}

Moreover, D is the crystallite size, d is the effective grain‐boundary thickness. In most of the nanostructured alloys, the estimated thickness of the interfaces was roughly found at 2–3 atomic layers [5, 7].…”

Section: Resultsmentioning

confidence: 99%

“…The grain-boundary affects the movement of dislocation and strain hardening significantly. On the basis of the coherent polycrystalline model [7], the volume fraction of the grain boundaries f gb was estimated by the formula…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, Co–Fe–Ni ternary alloys exhibit good soft magnetic properties that suggest several applications, for instance, write head core materials in hard‐disk drives [6, 7]. However, there are only a few works available on the detailed investigation of the effect of substitution elements on the evolution of nanocrystalline microstructure and the resulting magnetic properties of FeCoNi alloy powders with %Co more than %Ni≤20% of Fe [7, 8] .…”

Section: Introductionmentioning

confidence: 99%

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Structure, magnetic and microwave studies of mechanically alloyed powders Fe45Ni35Co20

Haddad¹,

Ouldbrahim²,

Azzaz

2018

Micro & Nano Letters

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Nanocrystalline Fe-35 wt%Ni-20 wt%Co has been prepared by using a high-energy planetary ball mill with increasing milling time from 4 to 36 h. Microstructural characterisations showed the development of an face-centred cubic nanostructured Fe-35 wt%Ni-20 wt%Co alloy with an average crystallite size of 8 nm. The magnetic investigation revealed that the nanostructures obtained from a milling time of 36 h have the highest magnetic saturation and the lowest coercive field. In addition, the hardness and the electromagnetic absorption of the Fe-35 wt%Ni-20 wt%Co alloy were found to increase with the milling time. These evolutions could be attributed to the crystallite size and the strain variations in the samples during milling.

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Section: Resultsmentioning

confidence: 99%

f_{normalgb} = 1 - f_{g}

where f g denotes the volume fraction of the grains given by

f_{g} = \frac{{false(D - d false)}^{3}}{D^{3}}

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structure, magnetic and microwave studies of mechanically alloyed powders Fe45Ni35Co20

Haddad¹,

Ouldbrahim²,

Azzaz

2018

Micro & Nano Letters

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“…It should be mentioned that the MA of Fe-Co-Ni powder mixtures was previously used to synthesize materials with special magnetic properties [23][24][25]. The possibility of significantly enhancing the strength and wear resistance has not yet been described in the literature.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Alloying as an Effective Way to Achieve Superior Properties of Fe–Co–Ni Binder Alloy

Логинов

Сидоренко

Bychkova

et al. 2017

Metals

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This study addresses the fabrication of nanocrystalline Fe-Co-Ni alloy using two operations: mechanical alloying (MA) of elemental powders and hot pressing (HP). The evolution of the phase composition and structure of the powder particles after MA was investigated. Ball milling with rotation speed 700 rpm for 15-20 min allows the production of a bcc Fe-based supersaturated solid solution. During the HP of this powder, this solution decomposes into a bcc (Fe) solid solution and fcc Fe 3 Ni precipitates, which act as a recrystallization barrier at elevated temperatures. This factor, along with the solid solution strengthening of the (α-Fe) matrix and high concentration of lattice defects (dislocations and twins), provides high mechanical properties (ultimate bending strength of 2000 MPa and hardness of 108 HRB) and wear resistance of the alloy. The developed Fe-Co-Ni alloy is promising for use as a binder in diamond tools designed for machining abrasive materials.

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Production of a Cobalt–Nickel–Iron Alloy from Low-Grade Ore

Hara

Chama

Kaluba

et al. 2020

The Minerals, Metals &Amp; Materials Series

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Structural and magnetic properties of nanocrystalline Fe–Co–Ni alloy processed by mechanical alloying

Cited by 50 publications

References 29 publications

Structure, magnetic and microwave studies of mechanically alloyed powders Fe45Ni35Co20

Structure, magnetic and microwave studies of mechanically alloyed powders Fe45Ni35Co20

Mechanical Alloying as an Effective Way to Achieve Superior Properties of Fe–Co–Ni Binder Alloy

Production of a Cobalt–Nickel–Iron Alloy from Low-Grade Ore

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