Reprint of “Enhancement of toughness and wear resistance by CrN/CrCN multilayered coatings for wood processing”

Ying Kong; X. Tian; Chunzhi Gong; Paul K. Chu

doi:10.1016/j.surfcoat.2019.06.042

Reprint of “Enhancement of toughness and wear resistance by CrN/CrCN multilayered coatings for wood processing”

Ying Kong
, X. Tian^*
, Chunzhi Gong
, Paul K. Chu

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
City University of Hong Kong

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

8 Scopus citations

Abstract

The coatings applied onto woodworking tools must possess higher hardness, adhesion, and fracture toughness. The CrN/CrCN multilayered coatings are deposited on M2 high-speed steel (HSS) and Si (100) by cathodic arc evaporation with different C₂H₂ flow rates and characterized systematically. The addition of carbon to the CrN coatings can enhance the toughness of coatings and the H/E ratio. The H/E and H³/E² ratios reach 0.085 and 0.176, respectively. The maximum nanohardness of the coatings is 24 GPa and the smallest friction coefficient is 0.48 together with the higher adhesion between the coating and substrate (HF1). Larger C₂H₂ flow rate can produce porous and loose microstructure with poor mechanical properties. The lifetime of the CrN/CrCN-coated blades made of high speed steel and cemented carbide materials is increased by about 33% and 7% respectively compared to that of CrN-coated blades, and by 170% and 110% compared to that of uncoated blades.

Original language	English
Pages (from-to)	318-327
Number of pages	10
Journal	Surface and Coatings Technology
Volume	355
DOIs	https://doi.org/10.1016/j.surfcoat.2019.06.042
State	Published - 15 Dec 2018

Keywords

CrN/CrCN multilayered coatings
H/E ratio
Mechanical properties
Toughness enhancement
Wood cutting

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10.1016/j.surfcoat.2019.06.042

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@article{87da777249c44787a4c5ca1bf881ff95,

title = "Reprint of “Enhancement of toughness and wear resistance by CrN/CrCN multilayered coatings for wood processing”",

abstract = "The coatings applied onto woodworking tools must possess higher hardness, adhesion, and fracture toughness. The CrN/CrCN multilayered coatings are deposited on M2 high-speed steel (HSS) and Si (100) by cathodic arc evaporation with different C2H2 flow rates and characterized systematically. The addition of carbon to the CrN coatings can enhance the toughness of coatings and the H/E ratio. The H/E and H3/E2 ratios reach 0.085 and 0.176, respectively. The maximum nanohardness of the coatings is 24 GPa and the smallest friction coefficient is 0.48 together with the higher adhesion between the coating and substrate (HF1). Larger C2H2 flow rate can produce porous and loose microstructure with poor mechanical properties. The lifetime of the CrN/CrCN-coated blades made of high speed steel and cemented carbide materials is increased by about 33\% and 7\% respectively compared to that of CrN-coated blades, and by 170\% and 110\% compared to that of uncoated blades.",

keywords = "CrN/CrCN multilayered coatings, H/E ratio, Mechanical properties, Toughness enhancement, Wood cutting",

author = "Ying Kong and X. Tian and Chunzhi Gong and Chu, \{Paul K.\}",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2018",

month = dec,

day = "15",

doi = "10.1016/j.surfcoat.2019.06.042",

language = "英语",

volume = "355",

pages = "318--327",

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TY - JOUR

T1 - Reprint of “Enhancement of toughness and wear resistance by CrN/CrCN multilayered coatings for wood processing”

AU - Kong, Ying

AU - Tian, X.

AU - Gong, Chunzhi

AU - Chu, Paul K.

PY - 2018/12/15

Y1 - 2018/12/15

N2 - The coatings applied onto woodworking tools must possess higher hardness, adhesion, and fracture toughness. The CrN/CrCN multilayered coatings are deposited on M2 high-speed steel (HSS) and Si (100) by cathodic arc evaporation with different C2H2 flow rates and characterized systematically. The addition of carbon to the CrN coatings can enhance the toughness of coatings and the H/E ratio. The H/E and H3/E2 ratios reach 0.085 and 0.176, respectively. The maximum nanohardness of the coatings is 24 GPa and the smallest friction coefficient is 0.48 together with the higher adhesion between the coating and substrate (HF1). Larger C2H2 flow rate can produce porous and loose microstructure with poor mechanical properties. The lifetime of the CrN/CrCN-coated blades made of high speed steel and cemented carbide materials is increased by about 33% and 7% respectively compared to that of CrN-coated blades, and by 170% and 110% compared to that of uncoated blades.

AB - The coatings applied onto woodworking tools must possess higher hardness, adhesion, and fracture toughness. The CrN/CrCN multilayered coatings are deposited on M2 high-speed steel (HSS) and Si (100) by cathodic arc evaporation with different C2H2 flow rates and characterized systematically. The addition of carbon to the CrN coatings can enhance the toughness of coatings and the H/E ratio. The H/E and H3/E2 ratios reach 0.085 and 0.176, respectively. The maximum nanohardness of the coatings is 24 GPa and the smallest friction coefficient is 0.48 together with the higher adhesion between the coating and substrate (HF1). Larger C2H2 flow rate can produce porous and loose microstructure with poor mechanical properties. The lifetime of the CrN/CrCN-coated blades made of high speed steel and cemented carbide materials is increased by about 33% and 7% respectively compared to that of CrN-coated blades, and by 170% and 110% compared to that of uncoated blades.

KW - CrN/CrCN multilayered coatings

KW - H/E ratio

KW - Mechanical properties

KW - Toughness enhancement

KW - Wood cutting

UR - https://www.scopus.com/pages/publications/85067947911

U2 - 10.1016/j.surfcoat.2019.06.042

DO - 10.1016/j.surfcoat.2019.06.042

M3 - 文章

AN - SCOPUS:85067947911

SN - 0257-8972

VL - 355

SP - 318

EP - 327

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

ER -

Reprint of “Enhancement of toughness and wear resistance by CrN/CrCN multilayered coatings for wood processing”

Abstract

Keywords

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