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

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

64 Scopus citations

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
State	Published - Jul 15 2017
Externally published	Yes

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.",

keywords = "Additive manufacturing, Iron-nickel alloys, Laser processing, Magnetic materials, Phase transformation",

author = "Mikler, \{C. V.\} and V. Chaudhary and V. Soni and B. Gwalani and Ramanujan, \{R. V.\} and R. Banerjee",

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T1 - Tuning the phase stability and magnetic properties of laser additively processed Fe-30at%Ni soft magnetic alloys

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

UR - https://www.scopus.com/pages/publications/85017507873

U2 - 10.1016/j.matlet.2017.04.054

DO - 10.1016/j.matlet.2017.04.054

M3 - Article

AN - SCOPUS:85017507873

SN - 0167-577X

VL - 199

SP - 88

EP - 92

JO - Materials Letters

JF - Materials Letters

ER -

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

Abstract

Keywords

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