Microstructure characterization and mechanical properties of thermal sprayed Ni-20wt.%Al coating

Jixiao Wang; Jingshun Liu; Lunyong Zhang; Jianfei Sun; Zhiping Wang

Microstructure characterization and mechanical properties of thermal sprayed Ni-20wt.%Al coating

Jixiao Wang^*
, Jingshun Liu
, Lunyong Zhang
, Jianfei Sun
, Zhiping Wang

^*Corresponding author for this work

Harbin Institute of Technology
Harbin Welding Institute
Inner Mongolia University of Technology
Xi'an University of Technology
Civil Aviation University of China

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

Abstract

Thermal sprayed Ni-20wt.%Al coating is fabricated on 6061-T6 aluminum alloy substrates by twin-wire arc spraying (TWAS). Experimental results present that the average bonding strength is around 53 MPa and the average hardness reaches 325 HV. The Vickers microhardness of NiAl and Ni₃Al intermetallic compounds is larger than that of the substrate, which is beneficial for improving the wear property. Wear mechanism exhibits features of adhesive wear. Friction and wear test results indicate that the wet friction coefficient is higher than the coefficient of dry friction after 200 cycles, and variations of the wet friction coefficient are relatively smaller.

Original language	English
Pages (from-to)	63-68
Number of pages	6
Journal	China Welding (English Edition)
Volume	23
Issue number	3
State	Published - 1 Sep 2014
Externally published	Yes

Keywords

Microstructure
Ni-20wt.%Al coating
Twin-wire arc spraying (TWAS)
Wear properties

Cite this

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title = "Microstructure characterization and mechanical properties of thermal sprayed Ni-20wt.\%Al coating",

abstract = "Thermal sprayed Ni-20wt.\%Al coating is fabricated on 6061-T6 aluminum alloy substrates by twin-wire arc spraying (TWAS). Experimental results present that the average bonding strength is around 53 MPa and the average hardness reaches 325 HV. The Vickers microhardness of NiAl and Ni3Al intermetallic compounds is larger than that of the substrate, which is beneficial for improving the wear property. Wear mechanism exhibits features of adhesive wear. Friction and wear test results indicate that the wet friction coefficient is higher than the coefficient of dry friction after 200 cycles, and variations of the wet friction coefficient are relatively smaller.",

keywords = "Microstructure, Ni-20wt.\%Al coating, Twin-wire arc spraying (TWAS), Wear properties",

author = "Jixiao Wang and Jingshun Liu and Lunyong Zhang and Jianfei Sun and Zhiping Wang",

note = "Publisher Copyright: {\textcopyright}2014 Editorial Board of CHINA WELDING.",

year = "2014",

month = sep,

day = "1",

language = "英语",

volume = "23",

pages = "63--68",

journal = "China Welding (English Edition)",

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T1 - Microstructure characterization and mechanical properties of thermal sprayed Ni-20wt.%Al coating

AU - Wang, Jixiao

AU - Liu, Jingshun

AU - Zhang, Lunyong

AU - Sun, Jianfei

AU - Wang, Zhiping

PY - 2014/9/1

Y1 - 2014/9/1

N2 - Thermal sprayed Ni-20wt.%Al coating is fabricated on 6061-T6 aluminum alloy substrates by twin-wire arc spraying (TWAS). Experimental results present that the average bonding strength is around 53 MPa and the average hardness reaches 325 HV. The Vickers microhardness of NiAl and Ni3Al intermetallic compounds is larger than that of the substrate, which is beneficial for improving the wear property. Wear mechanism exhibits features of adhesive wear. Friction and wear test results indicate that the wet friction coefficient is higher than the coefficient of dry friction after 200 cycles, and variations of the wet friction coefficient are relatively smaller.

AB - Thermal sprayed Ni-20wt.%Al coating is fabricated on 6061-T6 aluminum alloy substrates by twin-wire arc spraying (TWAS). Experimental results present that the average bonding strength is around 53 MPa and the average hardness reaches 325 HV. The Vickers microhardness of NiAl and Ni3Al intermetallic compounds is larger than that of the substrate, which is beneficial for improving the wear property. Wear mechanism exhibits features of adhesive wear. Friction and wear test results indicate that the wet friction coefficient is higher than the coefficient of dry friction after 200 cycles, and variations of the wet friction coefficient are relatively smaller.

KW - Microstructure

KW - Ni-20wt.%Al coating

KW - Twin-wire arc spraying (TWAS)

KW - Wear properties

UR - https://www.scopus.com/pages/publications/84916887908

M3 - 文章

AN - SCOPUS:84916887908

SN - 1004-5341

VL - 23

SP - 63

EP - 68

JO - China Welding (English Edition)

JF - China Welding (English Edition)

IS - 3

ER -

Microstructure characterization and mechanical properties of thermal sprayed Ni-20wt.%Al coating

Abstract

Keywords

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