Tailoring the impact toughness of sintered NdFeB magnets via surface coating

X. G. Cui; J. X. Pan; C. Y. Cui; P. Mei; X. H. Wang; C. Fang; T. Y. Ma; C. Wang; X. C. Peng

doi:10.4283/JMAG.2018.23.1.079

Tailoring the impact toughness of sintered NdFeB magnets via surface coating

X. G. Cui
, J. X. Pan
, C. Y. Cui
, P. Mei
, X. H. Wang
, C. Fang
, T. Y. Ma
, C. Wang
, X. C. Peng

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

3 Scopus citations

Abstract

Metallic coating by electroplating is commonly attractive for improving the corrosion resistance of sintered NdFeB magnets. However, its tailoring of mechanical characteristics for sintered NdFeB magnets has been seldom concerned. Herein, the impact toughnesses of sintered NdFeB magnets with various metallic coatings (Ni or Ni/Sn) were comparatively investigated. The results indicate that the impact toughnesses of sintered NdFeB magnets are both improved by Ni coating and Ni/Sn bilayer coating. And Ni/Sn bilayer coating exhibits more enhancement of the impact toughness, increased by 41.6 % compared with the original magnet. Moreover, the microstructural observations of the metallic coatings and the fracture were conducted, and the enhanced mechanism of impact toughness for the magnet is analyzed. These findings may provide a reference for toughening the brittle materials.

Original language	English
Pages (from-to)	79-85
Number of pages	7
Journal	Journal of Magnetics
Volume	23
Issue number	1
DOIs	https://doi.org/10.4283/JMAG.2018.23.1.079
State	Published - 2018
Externally published	Yes

Keywords

Fractography
Impact toughness
Metallic coating
Microstructure
Sintered NdFeB magnets

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10.4283/JMAG.2018.23.1.079

Cite this

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title = "Tailoring the impact toughness of sintered NdFeB magnets via surface coating",

abstract = "Metallic coating by electroplating is commonly attractive for improving the corrosion resistance of sintered NdFeB magnets. However, its tailoring of mechanical characteristics for sintered NdFeB magnets has been seldom concerned. Herein, the impact toughnesses of sintered NdFeB magnets with various metallic coatings (Ni or Ni/Sn) were comparatively investigated. The results indicate that the impact toughnesses of sintered NdFeB magnets are both improved by Ni coating and Ni/Sn bilayer coating. And Ni/Sn bilayer coating exhibits more enhancement of the impact toughness, increased by 41.6 \% compared with the original magnet. Moreover, the microstructural observations of the metallic coatings and the fracture were conducted, and the enhanced mechanism of impact toughness for the magnet is analyzed. These findings may provide a reference for toughening the brittle materials.",

keywords = "Fractography, Impact toughness, Metallic coating, Microstructure, Sintered NdFeB magnets",

author = "Cui, \{X. G.\} and Pan, \{J. X.\} and Cui, \{C. Y.\} and P. Mei and Wang, \{X. H.\} and C. Fang and Ma, \{T. Y.\} and C. Wang and Peng, \{X. C.\}",

year = "2018",

doi = "10.4283/JMAG.2018.23.1.079",

language = "英语",

volume = "23",

pages = "79--85",

journal = "Journal of Magnetics",

issn = "1226-1750",

publisher = "Seoul National University 501-321",

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}

TY - JOUR

T1 - Tailoring the impact toughness of sintered NdFeB magnets via surface coating

AU - Cui, X. G.

AU - Pan, J. X.

AU - Cui, C. Y.

AU - Mei, P.

AU - Wang, X. H.

AU - Fang, C.

AU - Ma, T. Y.

AU - Wang, C.

AU - Peng, X. C.

PY - 2018

Y1 - 2018

N2 - Metallic coating by electroplating is commonly attractive for improving the corrosion resistance of sintered NdFeB magnets. However, its tailoring of mechanical characteristics for sintered NdFeB magnets has been seldom concerned. Herein, the impact toughnesses of sintered NdFeB magnets with various metallic coatings (Ni or Ni/Sn) were comparatively investigated. The results indicate that the impact toughnesses of sintered NdFeB magnets are both improved by Ni coating and Ni/Sn bilayer coating. And Ni/Sn bilayer coating exhibits more enhancement of the impact toughness, increased by 41.6 % compared with the original magnet. Moreover, the microstructural observations of the metallic coatings and the fracture were conducted, and the enhanced mechanism of impact toughness for the magnet is analyzed. These findings may provide a reference for toughening the brittle materials.

AB - Metallic coating by electroplating is commonly attractive for improving the corrosion resistance of sintered NdFeB magnets. However, its tailoring of mechanical characteristics for sintered NdFeB magnets has been seldom concerned. Herein, the impact toughnesses of sintered NdFeB magnets with various metallic coatings (Ni or Ni/Sn) were comparatively investigated. The results indicate that the impact toughnesses of sintered NdFeB magnets are both improved by Ni coating and Ni/Sn bilayer coating. And Ni/Sn bilayer coating exhibits more enhancement of the impact toughness, increased by 41.6 % compared with the original magnet. Moreover, the microstructural observations of the metallic coatings and the fracture were conducted, and the enhanced mechanism of impact toughness for the magnet is analyzed. These findings may provide a reference for toughening the brittle materials.

KW - Fractography

KW - Impact toughness

KW - Metallic coating

KW - Microstructure

KW - Sintered NdFeB magnets

UR - https://www.scopus.com/pages/publications/85045327840

U2 - 10.4283/JMAG.2018.23.1.079

DO - 10.4283/JMAG.2018.23.1.079

M3 - 文章

AN - SCOPUS:85045327840

SN - 1226-1750

VL - 23

SP - 79

EP - 85

JO - Journal of Magnetics

JF - Journal of Magnetics

IS - 1

ER -

Tailoring the impact toughness of sintered NdFeB magnets via surface coating

Abstract

Keywords

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