Effect of metallic Nd on the decomposition behavior of Nd6(Fe,Co)13Ga phase in hot-deformed Nd-Fe-B magnet

Tieqiao Zhang; Wandong Xing; Fugang Chen; Lanting Zhang; Rong Yu

doi:10.1016/j.intermet.2022.107558

Effect of metallic Nd on the decomposition behavior of Nd₆(Fe,Co)₁₃Ga phase in hot-deformed Nd-Fe-B magnet

Tieqiao Zhang
, Wandong Xing
, Fugang Chen
, Lanting Zhang
, Rong Yu^*

^*Corresponding author for this work

Tsinghua University
Jiangsu University of Science and Technology
Shanghai Jiao Tong University

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

10 Scopus citations

Abstract

The effect of metallic Nd on the decomposition behavior of Nd₆(Fe,Co)₁₃Ga phase in hot-deformed Nd-Fe-B magnet was investigated. The block-shaped Nd₆(Fe,Co)₁₃Ga phase in powder flake interfaces of hot-deformed magnet almost decomposed when the metallic Nd diffusion process was performed at 675 °C for 30 min. Detailed STEM and corresponding EDS analyses found that three different types of intergranular phases, Nd₅Ga₃, Nd₃Co and nano-sized Nd₆Fe₁₃Ga, existed in the Nd-diffused magnet, which indicated a new decomposition mechanism for the Nd₆(Fe,Co)₁₃Ga phase. A coupling reaction between the metallic Nd and Nd₆(Fe,Co)₁₃Ga phases was designed to confirm the experimental results in the hot-deformed sample after Nd diffusion.

Original language	English
Article number	107558
Journal	Intermetallics
Volume	145
DOIs	https://doi.org/10.1016/j.intermet.2022.107558
State	Published - Jun 2022
Externally published	Yes

Keywords

Decomposition mechanism
Hot-deformed Nd-Fe-B
NdCo phase
NdFeGa phase
NdGa phase

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10.1016/j.intermet.2022.107558

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@article{313ae23d81c640ffa37654275895e48e,

title = "Effect of metallic Nd on the decomposition behavior of Nd6(Fe,Co)13Ga phase in hot-deformed Nd-Fe-B magnet",

abstract = "The effect of metallic Nd on the decomposition behavior of Nd6(Fe,Co)13Ga phase in hot-deformed Nd-Fe-B magnet was investigated. The block-shaped Nd6(Fe,Co)13Ga phase in powder flake interfaces of hot-deformed magnet almost decomposed when the metallic Nd diffusion process was performed at 675 °C for 30 min. Detailed STEM and corresponding EDS analyses found that three different types of intergranular phases, Nd5Ga3, Nd3Co and nano-sized Nd6Fe13Ga, existed in the Nd-diffused magnet, which indicated a new decomposition mechanism for the Nd6(Fe,Co)13Ga phase. A coupling reaction between the metallic Nd and Nd6(Fe,Co)13Ga phases was designed to confirm the experimental results in the hot-deformed sample after Nd diffusion.",

keywords = "Decomposition mechanism, Hot-deformed Nd-Fe-B, NdCo phase, NdFeGa phase, NdGa phase",

author = "Tieqiao Zhang and Wandong Xing and Fugang Chen and Lanting Zhang and Rong Yu",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = jun,

doi = "10.1016/j.intermet.2022.107558",

language = "英语",

volume = "145",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Effect of metallic Nd on the decomposition behavior of Nd6(Fe,Co)13Ga phase in hot-deformed Nd-Fe-B magnet

AU - Zhang, Tieqiao

AU - Xing, Wandong

AU - Chen, Fugang

AU - Zhang, Lanting

AU - Yu, Rong

PY - 2022/6

Y1 - 2022/6

N2 - The effect of metallic Nd on the decomposition behavior of Nd6(Fe,Co)13Ga phase in hot-deformed Nd-Fe-B magnet was investigated. The block-shaped Nd6(Fe,Co)13Ga phase in powder flake interfaces of hot-deformed magnet almost decomposed when the metallic Nd diffusion process was performed at 675 °C for 30 min. Detailed STEM and corresponding EDS analyses found that three different types of intergranular phases, Nd5Ga3, Nd3Co and nano-sized Nd6Fe13Ga, existed in the Nd-diffused magnet, which indicated a new decomposition mechanism for the Nd6(Fe,Co)13Ga phase. A coupling reaction between the metallic Nd and Nd6(Fe,Co)13Ga phases was designed to confirm the experimental results in the hot-deformed sample after Nd diffusion.

AB - The effect of metallic Nd on the decomposition behavior of Nd6(Fe,Co)13Ga phase in hot-deformed Nd-Fe-B magnet was investigated. The block-shaped Nd6(Fe,Co)13Ga phase in powder flake interfaces of hot-deformed magnet almost decomposed when the metallic Nd diffusion process was performed at 675 °C for 30 min. Detailed STEM and corresponding EDS analyses found that three different types of intergranular phases, Nd5Ga3, Nd3Co and nano-sized Nd6Fe13Ga, existed in the Nd-diffused magnet, which indicated a new decomposition mechanism for the Nd6(Fe,Co)13Ga phase. A coupling reaction between the metallic Nd and Nd6(Fe,Co)13Ga phases was designed to confirm the experimental results in the hot-deformed sample after Nd diffusion.

KW - Decomposition mechanism

KW - Hot-deformed Nd-Fe-B

KW - NdCo phase

KW - NdFeGa phase

KW - NdGa phase

UR - https://www.scopus.com/pages/publications/85127516495

U2 - 10.1016/j.intermet.2022.107558

DO - 10.1016/j.intermet.2022.107558

M3 - 文章

AN - SCOPUS:85127516495

SN - 0966-9795

VL - 145

JO - Intermetallics

JF - Intermetallics

M1 - 107558

ER -

Effect of metallic Nd on the decomposition behavior of Nd₆(Fe,Co)₁₃Ga phase in hot-deformed Nd-Fe-B magnet

Abstract

Keywords

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