Magnetic and mechanical properties of an additively manufactured equiatomic CoFeNi complex concentrated alloy

M. S.K.K.Y. Nartu; A. Jagetia; V. Chaudhary; S. A. Mantri; E. Ivanov; N. B. Dahotre; R. V. Ramanujan; R. Banerjee

doi:10.1016/j.scriptamat.2020.05.063

Magnetic and mechanical properties of an additively manufactured equiatomic CoFeNi complex concentrated alloy

M. S.K.K.Y. Nartu, A. Jagetia, V. Chaudhary, S. A. Mantri, E. Ivanov, N. B. Dahotre, R. V. Ramanujan, R. Banerjee^*

^*Corresponding author for this work

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

54 Citations (Scopus)

Abstract

Soft magnetic alloys produced by additive manufacturing (AM) typically exhibit inferior magnetic properties compared to conventionally processed counterparts. The present study shows that the saturation magnetization and coercivity of the equiatomic ternary CoFeNi complex concentrated alloy (CCA), processed using the laser engineered net shaping (LENS) additive manufacturing (AM) technique, is identical to that of conventionally cast and thermo-mechanically processed samples. Further, the LENS processed alloy exhibits higher yield strength and marginally lower ductility compared to conventionally processed alloys. LENS processed CoFeNi exhibited an excellent combination of soft magnetic and mechanical properties, relevant, e.g., to high speed electrical machines.

Original language	English
Pages (from-to)	30-36
Number of pages	7
Journal	Scripta Materialia
Volume	187
DOIs	https://doi.org/10.1016/j.scriptamat.2020.05.063
Publication status	Published - Oct 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020

ASJC Scopus Subject Areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Keywords

Direct energy deposition
Laser additive manufacturing
Mechanical properties
Medium entropy alloy
Soft magnetic materials

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10.1016/j.scriptamat.2020.05.063

Cite this

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title = "Magnetic and mechanical properties of an additively manufactured equiatomic CoFeNi complex concentrated alloy",

abstract = "Soft magnetic alloys produced by additive manufacturing (AM) typically exhibit inferior magnetic properties compared to conventionally processed counterparts. The present study shows that the saturation magnetization and coercivity of the equiatomic ternary CoFeNi complex concentrated alloy (CCA), processed using the laser engineered net shaping (LENS) additive manufacturing (AM) technique, is identical to that of conventionally cast and thermo-mechanically processed samples. Further, the LENS processed alloy exhibits higher yield strength and marginally lower ductility compared to conventionally processed alloys. LENS processed CoFeNi exhibited an excellent combination of soft magnetic and mechanical properties, relevant, e.g., to high speed electrical machines.",

keywords = "Direct energy deposition, Laser additive manufacturing, Mechanical properties, Medium entropy alloy, Soft magnetic materials",

author = "Nartu, {M. S.K.K.Y.} and A. Jagetia and V. Chaudhary and Mantri, {S. A.} and E. Ivanov and Dahotre, {N. B.} and Ramanujan, {R. V.} and R. Banerjee",

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year = "2020",

month = oct,

doi = "10.1016/j.scriptamat.2020.05.063",

language = "English",

volume = "187",

pages = "30--36",

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T1 - Magnetic and mechanical properties of an additively manufactured equiatomic CoFeNi complex concentrated alloy

AU - Nartu, M. S.K.K.Y.

AU - Jagetia, A.

AU - Chaudhary, V.

AU - Mantri, S. A.

AU - Ivanov, E.

AU - Dahotre, N. B.

AU - Ramanujan, R. V.

AU - Banerjee, R.

PY - 2020/10

Y1 - 2020/10

N2 - Soft magnetic alloys produced by additive manufacturing (AM) typically exhibit inferior magnetic properties compared to conventionally processed counterparts. The present study shows that the saturation magnetization and coercivity of the equiatomic ternary CoFeNi complex concentrated alloy (CCA), processed using the laser engineered net shaping (LENS) additive manufacturing (AM) technique, is identical to that of conventionally cast and thermo-mechanically processed samples. Further, the LENS processed alloy exhibits higher yield strength and marginally lower ductility compared to conventionally processed alloys. LENS processed CoFeNi exhibited an excellent combination of soft magnetic and mechanical properties, relevant, e.g., to high speed electrical machines.

AB - Soft magnetic alloys produced by additive manufacturing (AM) typically exhibit inferior magnetic properties compared to conventionally processed counterparts. The present study shows that the saturation magnetization and coercivity of the equiatomic ternary CoFeNi complex concentrated alloy (CCA), processed using the laser engineered net shaping (LENS) additive manufacturing (AM) technique, is identical to that of conventionally cast and thermo-mechanically processed samples. Further, the LENS processed alloy exhibits higher yield strength and marginally lower ductility compared to conventionally processed alloys. LENS processed CoFeNi exhibited an excellent combination of soft magnetic and mechanical properties, relevant, e.g., to high speed electrical machines.

KW - Direct energy deposition

KW - Laser additive manufacturing

KW - Mechanical properties

KW - Medium entropy alloy

KW - Soft magnetic materials

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DO - 10.1016/j.scriptamat.2020.05.063

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VL - 187

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JO - Scripta Materialia

JF - Scripta Materialia

ER -

Magnetic and mechanical properties of an additively manufactured equiatomic CoFeNi complex concentrated alloy

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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