Cavitation and Sand Slurry Erosion Resistances of WC-10Co-4Cr Coatings

Qun Wang; Zhaoxi Tang; Limei Cha

doi:10.1007/s11665-015-1496-z

Cavitation and Sand Slurry Erosion Resistances of WC-10Co-4Cr Coatings

Qun Wang^*, Zhaoxi Tang, Limei Cha

^*Corresponding author for this work

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

59 Scopus citations

Abstract

Two WC-10Co-4Cr coatings were deposited by high-velocity oxygen fuel (HVOF) and high-velocity air fuel (HVAF) spray processes, respectively, and their basic mechanical properties, cavitation and sand slurry erosion resistances were investigated. The results show that the HVAF-sprayed WC-10Co-4Cr coating exhibited a lower degree of decarburization and better properties in terms of hardness, fracture toughness, porosity, cavitation and sand slurry erosion resistances than those of the HVOF-sprayed WC-10Co-4Cr coatings, respectively. Therefore, HVAF-sprayed WC-10Co-4Cr coatings may be better employed for the protection of hydro-turbine component surfaces against cavitation and sand slurry erosion.

Original language	English
Pages (from-to)	2435-2443
Number of pages	9
Journal	Journal of Materials Engineering and Performance
Volume	24
Issue number	6
DOIs	https://doi.org/10.1007/s11665-015-1496-z
State	Published - 26 Jun 2015
Externally published	Yes

Keywords

HVAF
HVOF
WC-10Co-4Cr
cavitation
sand slurry erosion

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10.1007/s11665-015-1496-z

Cite this

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title = "Cavitation and Sand Slurry Erosion Resistances of WC-10Co-4Cr Coatings",

abstract = "Two WC-10Co-4Cr coatings were deposited by high-velocity oxygen fuel (HVOF) and high-velocity air fuel (HVAF) spray processes, respectively, and their basic mechanical properties, cavitation and sand slurry erosion resistances were investigated. The results show that the HVAF-sprayed WC-10Co-4Cr coating exhibited a lower degree of decarburization and better properties in terms of hardness, fracture toughness, porosity, cavitation and sand slurry erosion resistances than those of the HVOF-sprayed WC-10Co-4Cr coatings, respectively. Therefore, HVAF-sprayed WC-10Co-4Cr coatings may be better employed for the protection of hydro-turbine component surfaces against cavitation and sand slurry erosion.",

keywords = "HVAF, HVOF, WC-10Co-4Cr, cavitation, sand slurry erosion",

author = "Qun Wang and Zhaoxi Tang and Limei Cha",

note = "Publisher Copyright: {\textcopyright} 2015, ASM International.",

year = "2015",

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doi = "10.1007/s11665-015-1496-z",

language = "英语",

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pages = "2435--2443",

journal = "Journal of Materials Engineering and Performance",

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TY - JOUR

T1 - Cavitation and Sand Slurry Erosion Resistances of WC-10Co-4Cr Coatings

AU - Wang, Qun

AU - Tang, Zhaoxi

AU - Cha, Limei

PY - 2015/6/26

Y1 - 2015/6/26

N2 - Two WC-10Co-4Cr coatings were deposited by high-velocity oxygen fuel (HVOF) and high-velocity air fuel (HVAF) spray processes, respectively, and their basic mechanical properties, cavitation and sand slurry erosion resistances were investigated. The results show that the HVAF-sprayed WC-10Co-4Cr coating exhibited a lower degree of decarburization and better properties in terms of hardness, fracture toughness, porosity, cavitation and sand slurry erosion resistances than those of the HVOF-sprayed WC-10Co-4Cr coatings, respectively. Therefore, HVAF-sprayed WC-10Co-4Cr coatings may be better employed for the protection of hydro-turbine component surfaces against cavitation and sand slurry erosion.

AB - Two WC-10Co-4Cr coatings were deposited by high-velocity oxygen fuel (HVOF) and high-velocity air fuel (HVAF) spray processes, respectively, and their basic mechanical properties, cavitation and sand slurry erosion resistances were investigated. The results show that the HVAF-sprayed WC-10Co-4Cr coating exhibited a lower degree of decarburization and better properties in terms of hardness, fracture toughness, porosity, cavitation and sand slurry erosion resistances than those of the HVOF-sprayed WC-10Co-4Cr coatings, respectively. Therefore, HVAF-sprayed WC-10Co-4Cr coatings may be better employed for the protection of hydro-turbine component surfaces against cavitation and sand slurry erosion.

KW - HVAF

KW - HVOF

KW - WC-10Co-4Cr

KW - cavitation

KW - sand slurry erosion

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DO - 10.1007/s11665-015-1496-z

M3 - 文章

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SN - 1059-9495

VL - 24

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EP - 2443

JO - Journal of Materials Engineering and Performance

JF - Journal of Materials Engineering and Performance

IS - 6

ER -

Cavitation and Sand Slurry Erosion Resistances of WC-10Co-4Cr Coatings

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Keywords

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