Tuning the phase stability and magnetic properties of laser additively processed Fe-30at%Ni soft magnetic alloys

C. V. Mikler; V. Chaudhary; V. Soni; B. Gwalani; R. V. Ramanujan; R. Banerjee

doi:10.1016/j.matlet.2017.04.054

Tuning the phase stability and magnetic properties of laser additively processed Fe-30at%Ni soft magnetic alloys

C. V. Mikler, V. Chaudhary, V. Soni, B. Gwalani, R. V. Ramanujan, R. Banerjee^*

^*Corresponding author for this work

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

59 Citations (Scopus)

Abstract

The widely used soft-magnetic alloy, Fe-30at%Ni, has been deposited using laser engineered net shaping (LENS™). A range of laser powers and travel speeds have been studied and correlated to phase stability and magnetic properties of the alloy. Columnar grains of the metastable fcc phase are predominant for slower travel speeds, however with increasing travel speeds, a substantial volume-fraction of a bcc, possibly martensitic, phase was observed. The bcc dominated microstructures exhibit a substantially higher saturation magnetization (M_s) compared to the fcc dominated microstructures.

Original language	English
Pages (from-to)	88-92
Number of pages	5
Journal	Materials Letters
Volume	199
DOIs	https://doi.org/10.1016/j.matlet.2017.04.054
Publication status	Published - Jul 15 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

ASJC Scopus Subject Areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Keywords

Additive manufacturing
Iron-nickel alloys
Laser processing
Magnetic materials
Phase transformation

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10.1016/j.matlet.2017.04.054

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title = "Tuning the phase stability and magnetic properties of laser additively processed Fe-30at%Ni soft magnetic alloys",

abstract = "The widely used soft-magnetic alloy, Fe-30at%Ni, has been deposited using laser engineered net shaping (LENS{\texttrademark}). A range of laser powers and travel speeds have been studied and correlated to phase stability and magnetic properties of the alloy. Columnar grains of the metastable fcc phase are predominant for slower travel speeds, however with increasing travel speeds, a substantial volume-fraction of a bcc, possibly martensitic, phase was observed. The bcc dominated microstructures exhibit a substantially higher saturation magnetization (Ms) compared to the fcc dominated microstructures.",

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AU - Mikler, C. V.

AU - Chaudhary, V.

AU - Soni, V.

AU - Gwalani, B.

AU - Ramanujan, R. V.

AU - Banerjee, R.

PY - 2017/7/15

Y1 - 2017/7/15

N2 - The widely used soft-magnetic alloy, Fe-30at%Ni, has been deposited using laser engineered net shaping (LENS™). A range of laser powers and travel speeds have been studied and correlated to phase stability and magnetic properties of the alloy. Columnar grains of the metastable fcc phase are predominant for slower travel speeds, however with increasing travel speeds, a substantial volume-fraction of a bcc, possibly martensitic, phase was observed. The bcc dominated microstructures exhibit a substantially higher saturation magnetization (Ms) compared to the fcc dominated microstructures.

AB - The widely used soft-magnetic alloy, Fe-30at%Ni, has been deposited using laser engineered net shaping (LENS™). A range of laser powers and travel speeds have been studied and correlated to phase stability and magnetic properties of the alloy. Columnar grains of the metastable fcc phase are predominant for slower travel speeds, however with increasing travel speeds, a substantial volume-fraction of a bcc, possibly martensitic, phase was observed. The bcc dominated microstructures exhibit a substantially higher saturation magnetization (Ms) compared to the fcc dominated microstructures.

KW - Additive manufacturing

KW - Iron-nickel alloys

KW - Laser processing

KW - Magnetic materials

KW - Phase transformation

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JO - Materials Letters

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Tuning the phase stability and magnetic properties of laser additively processed Fe-30at%Ni soft magnetic alloys

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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