Behavior of HVOF WC-10Co4Cr Coatings with Different Carbide Size in Fine and Coarse Particle Abrasion

Arash Ghabchi, Tommi Varis, Erja Turunen, Tomi Suhonen, Xuwen Liu, S-P. Hannula

Research output: Contribution to journalArticleScientificpeer-review

47 Citations (Scopus)

Abstract

A modified ASTM G 65 rubber wheel test was employed in wet and dry conditions using 220 nm titania particles and 368 lm sand particles, respectively. Both tests were conducted on WC-CoCr coatings produced with two powders with different carbide grain sizes (conventional and sub-micron) to address the effect of carbide size and abrasive medium characteristics on the wear performance. The same spot before and after the wet abrasion wear testing was analyzed in detail using SEM to visualize wear mechanisms. It was shown that the wear mechanism depends on the relative size of the carbide and abrasive particles. Wear mechanisms in dry sand abrasion were studied by analyzing the single scratches formed by individual abrasive particles. Interaction of surface open porosity with moving abrasive particles causes formation of single scratches. By tailoring the carbide size, the wear performance can be improved.
Original languageEnglish
Pages (from-to)368-377
JournalJournal of Thermal Spray Technology
Volume19
Issue number1-2
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

Fingerprint

abrasion
Abrasion
carbides
Carbides
Wear of materials
abrasives
Abrasives
coatings
Coatings
sands
Sand
Rubber
wheels
rubber
Powders
Wheels
titanium
Titanium
Porosity
grain size

Keywords

  • HVOF
  • rubber wheel abrasion test
  • WC-CoCr
  • wear mechanism
  • ProperTune

Cite this

@article{07e76950c0304693b331bb1da158987b,
title = "Behavior of HVOF WC-10Co4Cr Coatings with Different Carbide Size in Fine and Coarse Particle Abrasion",
abstract = "A modified ASTM G 65 rubber wheel test was employed in wet and dry conditions using 220 nm titania particles and 368 lm sand particles, respectively. Both tests were conducted on WC-CoCr coatings produced with two powders with different carbide grain sizes (conventional and sub-micron) to address the effect of carbide size and abrasive medium characteristics on the wear performance. The same spot before and after the wet abrasion wear testing was analyzed in detail using SEM to visualize wear mechanisms. It was shown that the wear mechanism depends on the relative size of the carbide and abrasive particles. Wear mechanisms in dry sand abrasion were studied by analyzing the single scratches formed by individual abrasive particles. Interaction of surface open porosity with moving abrasive particles causes formation of single scratches. By tailoring the carbide size, the wear performance can be improved.",
keywords = "HVOF, rubber wheel abrasion test, WC-CoCr, wear mechanism, ProperTune",
author = "Arash Ghabchi and Tommi Varis and Erja Turunen and Tomi Suhonen and Xuwen Liu and S-P. Hannula",
year = "2009",
doi = "10.1007/s11666-009-9433-z",
language = "English",
volume = "19",
pages = "368--377",
journal = "Journal of Thermal Spray Technology",
issn = "1059-9630",
publisher = "Springer",
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}

Behavior of HVOF WC-10Co4Cr Coatings with Different Carbide Size in Fine and Coarse Particle Abrasion. / Ghabchi, Arash; Varis, Tommi; Turunen, Erja; Suhonen, Tomi; Liu, Xuwen; Hannula, S-P.

In: Journal of Thermal Spray Technology, Vol. 19, No. 1-2, 2009, p. 368-377.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Behavior of HVOF WC-10Co4Cr Coatings with Different Carbide Size in Fine and Coarse Particle Abrasion

AU - Ghabchi, Arash

AU - Varis, Tommi

AU - Turunen, Erja

AU - Suhonen, Tomi

AU - Liu, Xuwen

AU - Hannula, S-P.

PY - 2009

Y1 - 2009

N2 - A modified ASTM G 65 rubber wheel test was employed in wet and dry conditions using 220 nm titania particles and 368 lm sand particles, respectively. Both tests were conducted on WC-CoCr coatings produced with two powders with different carbide grain sizes (conventional and sub-micron) to address the effect of carbide size and abrasive medium characteristics on the wear performance. The same spot before and after the wet abrasion wear testing was analyzed in detail using SEM to visualize wear mechanisms. It was shown that the wear mechanism depends on the relative size of the carbide and abrasive particles. Wear mechanisms in dry sand abrasion were studied by analyzing the single scratches formed by individual abrasive particles. Interaction of surface open porosity with moving abrasive particles causes formation of single scratches. By tailoring the carbide size, the wear performance can be improved.

AB - A modified ASTM G 65 rubber wheel test was employed in wet and dry conditions using 220 nm titania particles and 368 lm sand particles, respectively. Both tests were conducted on WC-CoCr coatings produced with two powders with different carbide grain sizes (conventional and sub-micron) to address the effect of carbide size and abrasive medium characteristics on the wear performance. The same spot before and after the wet abrasion wear testing was analyzed in detail using SEM to visualize wear mechanisms. It was shown that the wear mechanism depends on the relative size of the carbide and abrasive particles. Wear mechanisms in dry sand abrasion were studied by analyzing the single scratches formed by individual abrasive particles. Interaction of surface open porosity with moving abrasive particles causes formation of single scratches. By tailoring the carbide size, the wear performance can be improved.

KW - HVOF

KW - rubber wheel abrasion test

KW - WC-CoCr

KW - wear mechanism

KW - ProperTune

U2 - 10.1007/s11666-009-9433-z

DO - 10.1007/s11666-009-9433-z

M3 - Article

VL - 19

SP - 368

EP - 377

JO - Journal of Thermal Spray Technology

JF - Journal of Thermal Spray Technology

SN - 1059-9630

IS - 1-2

ER -