Wear resistance mechanisms of near-nanostructured WC-Co coatings

Haibin Wang; Chao Hou; Xuemei Liu; Xingwei Liu; Xiaoyan Song

doi:10.1016/j.ijrmhm.2017.11.013

Wear resistance mechanisms of near-nanostructured WC-Co coatings

Haibin Wang
, Chao Hou
, Xuemei Liu
, Xingwei Liu
, Xiaoyan Song^*

^*Corresponding author for this work

Beijing University of Technology

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

33 Citations (Scopus)

Abstract

Dense near-nanostructured WC-Co coatings with hardness above 1400 HV_0.3 were fabricated by high velocity oxy-fuel spraying using the in situ synthesized WC-Co composite powders containing VC and Cr₃C₂. The carbide additives inhibited WC coarsening effectively and facilitated formation of the clustered structures consisting of WC grains and amorphous Co. Owing to the dragging effect of clusters, the connected WC particles are much more difficult to be peeled off than the isolated WC particles. Therefore, the wear resistance of the near-nanostructured coating was significantly enhanced. The mechanisms proposed the importance of interfacial characteristics for the wear resistance behavior of the cermet coatings.

Original language	English
Pages (from-to)	122-128
Number of pages	7
Journal	International Journal of Refractory Metals and Hard Materials
Volume	71
DOIs	https://doi.org/10.1016/j.ijrmhm.2017.11.013
Publication status	Published - Feb 2018
Externally published	Yes

Keywords

Cluster structure
Interface
Near-nanostructured WC-Co coating
Wear resistance mechanism

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10.1016/j.ijrmhm.2017.11.013

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title = "Wear resistance mechanisms of near-nanostructured WC-Co coatings",

abstract = "Dense near-nanostructured WC-Co coatings with hardness above 1400 HV0.3 were fabricated by high velocity oxy-fuel spraying using the in situ synthesized WC-Co composite powders containing VC and Cr3C2. The carbide additives inhibited WC coarsening effectively and facilitated formation of the clustered structures consisting of WC grains and amorphous Co. Owing to the dragging effect of clusters, the connected WC particles are much more difficult to be peeled off than the isolated WC particles. Therefore, the wear resistance of the near-nanostructured coating was significantly enhanced. The mechanisms proposed the importance of interfacial characteristics for the wear resistance behavior of the cermet coatings.",

keywords = "Cluster structure, Interface, Near-nanostructured WC-Co coating, Wear resistance mechanism",

author = "Haibin Wang and Chao Hou and Xuemei Liu and Xingwei Liu and Xiaoyan Song",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = feb,

doi = "10.1016/j.ijrmhm.2017.11.013",

language = "English",

volume = "71",

pages = "122--128",

journal = "International Journal of Refractory Metals and Hard Materials",

issn = "0263-4368",

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}

TY - JOUR

T1 - Wear resistance mechanisms of near-nanostructured WC-Co coatings

AU - Wang, Haibin

AU - Hou, Chao

AU - Liu, Xuemei

AU - Liu, Xingwei

AU - Song, Xiaoyan

PY - 2018/2

Y1 - 2018/2

N2 - Dense near-nanostructured WC-Co coatings with hardness above 1400 HV0.3 were fabricated by high velocity oxy-fuel spraying using the in situ synthesized WC-Co composite powders containing VC and Cr3C2. The carbide additives inhibited WC coarsening effectively and facilitated formation of the clustered structures consisting of WC grains and amorphous Co. Owing to the dragging effect of clusters, the connected WC particles are much more difficult to be peeled off than the isolated WC particles. Therefore, the wear resistance of the near-nanostructured coating was significantly enhanced. The mechanisms proposed the importance of interfacial characteristics for the wear resistance behavior of the cermet coatings.

AB - Dense near-nanostructured WC-Co coatings with hardness above 1400 HV0.3 were fabricated by high velocity oxy-fuel spraying using the in situ synthesized WC-Co composite powders containing VC and Cr3C2. The carbide additives inhibited WC coarsening effectively and facilitated formation of the clustered structures consisting of WC grains and amorphous Co. Owing to the dragging effect of clusters, the connected WC particles are much more difficult to be peeled off than the isolated WC particles. Therefore, the wear resistance of the near-nanostructured coating was significantly enhanced. The mechanisms proposed the importance of interfacial characteristics for the wear resistance behavior of the cermet coatings.

KW - Cluster structure

KW - Interface

KW - Near-nanostructured WC-Co coating

KW - Wear resistance mechanism

UR - https://www.scopus.com/pages/publications/85034098734

U2 - 10.1016/j.ijrmhm.2017.11.013

DO - 10.1016/j.ijrmhm.2017.11.013

M3 - Article

AN - SCOPUS:85034098734

SN - 0263-4368

VL - 71

SP - 122

EP - 128

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

ER -

Wear resistance mechanisms of near-nanostructured WC-Co coatings

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Keywords

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