Laser additive processing of Fe-Si-B-Cu-Nb magnetic alloys

R. Conteri; T. Borkar; S. Nag; D. Jaeger; X. Chen; R. V. Ramanujan; R. Banerjee

doi:10.1016/j.jmapro.2017.07.029

Laser additive processing of Fe-Si-B-Cu-Nb magnetic alloys

R. Conteri, T. Borkar, S. Nag, D. Jaeger, X. Chen, R. V. Ramanujan, R. Banerjee

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

The magnetic alloy of nominal composition, Fe_73.5Si_13.5B₉Nb₃Cu₁, has been successfully processed using the laser engineered net shaping (LENS™) process, from a feedstock of elemental powders. The microstructure consists of dendritic α-Fe₃Si grains, with B and Nb partitioning to the inter-dendritic regions, resulting in the formation of Fe₃B grains. Additionally, Fe₂₃B₆ grains are visible at the α-Fe₃Si/Fe₃B interface. The scale of this microstructure can be varied via the laser deposition parameters and this, in turn, influences coercivity (H_c) and saturation magnetization (M_s) of these laser-deposited magnetic alloys. This work shows the feasibility of creating novel geometries of magnetic materials by the laser engineered net shaping process.

Original language	English
Pages (from-to)	175-181
Number of pages	7
Journal	Journal of Manufacturing Processes
Volume	29
DOIs	https://doi.org/10.1016/j.jmapro.2017.07.029
State	Published - Oct 2017
Externally published	Yes

Keywords

Intermetallics
Laser processing
Magnetic measurements
Magnetisation
Transmission electron microscopy (TEM)

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10.1016/j.jmapro.2017.07.029

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title = "Laser additive processing of Fe-Si-B-Cu-Nb magnetic alloys",

abstract = "The magnetic alloy of nominal composition, Fe73.5Si13.5B9Nb3Cu1, has been successfully processed using the laser engineered net shaping (LENS{\texttrademark}) process, from a feedstock of elemental powders. The microstructure consists of dendritic α-Fe3Si grains, with B and Nb partitioning to the inter-dendritic regions, resulting in the formation of Fe3B grains. Additionally, Fe23B6 grains are visible at the α-Fe3Si/Fe3B interface. The scale of this microstructure can be varied via the laser deposition parameters and this, in turn, influences coercivity (Hc) and saturation magnetization (Ms) of these laser-deposited magnetic alloys. This work shows the feasibility of creating novel geometries of magnetic materials by the laser engineered net shaping process.",

keywords = "Intermetallics, Laser processing, Magnetic measurements, Magnetisation, Transmission electron microscopy (TEM)",

author = "R. Conteri and T. Borkar and S. Nag and D. Jaeger and X. Chen and Ramanujan, {R. V.} and R. Banerjee",

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doi = "10.1016/j.jmapro.2017.07.029",

language = "English",

volume = "29",

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T1 - Laser additive processing of Fe-Si-B-Cu-Nb magnetic alloys

AU - Conteri, R.

AU - Borkar, T.

AU - Nag, S.

AU - Jaeger, D.

AU - Chen, X.

AU - Ramanujan, R. V.

AU - Banerjee, R.

PY - 2017/10

Y1 - 2017/10

N2 - The magnetic alloy of nominal composition, Fe73.5Si13.5B9Nb3Cu1, has been successfully processed using the laser engineered net shaping (LENS™) process, from a feedstock of elemental powders. The microstructure consists of dendritic α-Fe3Si grains, with B and Nb partitioning to the inter-dendritic regions, resulting in the formation of Fe3B grains. Additionally, Fe23B6 grains are visible at the α-Fe3Si/Fe3B interface. The scale of this microstructure can be varied via the laser deposition parameters and this, in turn, influences coercivity (Hc) and saturation magnetization (Ms) of these laser-deposited magnetic alloys. This work shows the feasibility of creating novel geometries of magnetic materials by the laser engineered net shaping process.

AB - The magnetic alloy of nominal composition, Fe73.5Si13.5B9Nb3Cu1, has been successfully processed using the laser engineered net shaping (LENS™) process, from a feedstock of elemental powders. The microstructure consists of dendritic α-Fe3Si grains, with B and Nb partitioning to the inter-dendritic regions, resulting in the formation of Fe3B grains. Additionally, Fe23B6 grains are visible at the α-Fe3Si/Fe3B interface. The scale of this microstructure can be varied via the laser deposition parameters and this, in turn, influences coercivity (Hc) and saturation magnetization (Ms) of these laser-deposited magnetic alloys. This work shows the feasibility of creating novel geometries of magnetic materials by the laser engineered net shaping process.

KW - Intermetallics

KW - Laser processing

KW - Magnetic measurements

KW - Magnetisation

KW - Transmission electron microscopy (TEM)

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JO - Journal of Manufacturing Processes

JF - Journal of Manufacturing Processes

ER -

Laser additive processing of Fe-Si-B-Cu-Nb magnetic alloys

Abstract

Keywords

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