The slurry erosive wear of physically vapour deposited TiN and CrN coatings under controlled corrosion

H.W. Wang, M.M. Stack

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The erosion-corrosion of mild steel (BS6323), in the presence and absence of physically vapour deposited (PVD) TiN and CrN coatings, was studied, in comparison with that of AISI 304 stainless steel, in an aqueous alkaline slurry solution containing alumina particles. The influence of applied potential and particle velocity on the total erosion-corrosion loss was examined, and the respective corrosion and erosion damage (both contributing to the overall weight loss) then assessed by means of microscopical investigation of the morphology of the damaged surface, and subsequently evaluated quantitatively. The superior erosion-corrosion resistance of both the coatings compared to that of the uncoated mild and stainless steels was shown to be due to their resistance to both wear and corrosion. According to the detailed corrosion mechanisms revealed and different responses to wear, schematic diagrams were proposed to outline the main features of the corrosion-erosion process and the individual roles of erosion and corrosion. Discrete differences, in terms of the respective erosion and corrosion processes, between the TiN and CrN coatings, and between the mild and stainless steels, were also investigated and discussed.

Original languageEnglish
Pages (from-to)23-36
Number of pages14
JournalTribology letters
Volume6
Issue number1
DOIs
Publication statusPublished - Jan 1999

Fingerprint

corrosion
erosion
Erosion
Vapors
Wear of materials
vapors
Corrosion
coatings
Coatings
Stainless Steel
Carbon steel
stainless steels
Stainless steel
steels
Aluminum Oxide
circuit diagrams
Schematic diagrams
corrosion resistance
Corrosion resistance
Alumina

Keywords

  • PVD coatings
  • TiN
  • CrN
  • erosion
  • corrosion
  • erosion-corrosion
  • titanium nitride coatings
  • stainless steel
  • abrasive wear
  • films
  • behavior
  • resistance
  • AISI-304
  • PH8
  • ZRN

Cite this

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title = "The slurry erosive wear of physically vapour deposited TiN and CrN coatings under controlled corrosion",
abstract = "The erosion-corrosion of mild steel (BS6323), in the presence and absence of physically vapour deposited (PVD) TiN and CrN coatings, was studied, in comparison with that of AISI 304 stainless steel, in an aqueous alkaline slurry solution containing alumina particles. The influence of applied potential and particle velocity on the total erosion-corrosion loss was examined, and the respective corrosion and erosion damage (both contributing to the overall weight loss) then assessed by means of microscopical investigation of the morphology of the damaged surface, and subsequently evaluated quantitatively. The superior erosion-corrosion resistance of both the coatings compared to that of the uncoated mild and stainless steels was shown to be due to their resistance to both wear and corrosion. According to the detailed corrosion mechanisms revealed and different responses to wear, schematic diagrams were proposed to outline the main features of the corrosion-erosion process and the individual roles of erosion and corrosion. Discrete differences, in terms of the respective erosion and corrosion processes, between the TiN and CrN coatings, and between the mild and stainless steels, were also investigated and discussed.",
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The slurry erosive wear of physically vapour deposited TiN and CrN coatings under controlled corrosion. / Wang, H.W.; Stack, M.M.

In: Tribology letters, Vol. 6, No. 1, 01.1999, p. 23-36.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The slurry erosive wear of physically vapour deposited TiN and CrN coatings under controlled corrosion

AU - Wang, H.W.

AU - Stack, M.M.

PY - 1999/1

Y1 - 1999/1

N2 - The erosion-corrosion of mild steel (BS6323), in the presence and absence of physically vapour deposited (PVD) TiN and CrN coatings, was studied, in comparison with that of AISI 304 stainless steel, in an aqueous alkaline slurry solution containing alumina particles. The influence of applied potential and particle velocity on the total erosion-corrosion loss was examined, and the respective corrosion and erosion damage (both contributing to the overall weight loss) then assessed by means of microscopical investigation of the morphology of the damaged surface, and subsequently evaluated quantitatively. The superior erosion-corrosion resistance of both the coatings compared to that of the uncoated mild and stainless steels was shown to be due to their resistance to both wear and corrosion. According to the detailed corrosion mechanisms revealed and different responses to wear, schematic diagrams were proposed to outline the main features of the corrosion-erosion process and the individual roles of erosion and corrosion. Discrete differences, in terms of the respective erosion and corrosion processes, between the TiN and CrN coatings, and between the mild and stainless steels, were also investigated and discussed.

AB - The erosion-corrosion of mild steel (BS6323), in the presence and absence of physically vapour deposited (PVD) TiN and CrN coatings, was studied, in comparison with that of AISI 304 stainless steel, in an aqueous alkaline slurry solution containing alumina particles. The influence of applied potential and particle velocity on the total erosion-corrosion loss was examined, and the respective corrosion and erosion damage (both contributing to the overall weight loss) then assessed by means of microscopical investigation of the morphology of the damaged surface, and subsequently evaluated quantitatively. The superior erosion-corrosion resistance of both the coatings compared to that of the uncoated mild and stainless steels was shown to be due to their resistance to both wear and corrosion. According to the detailed corrosion mechanisms revealed and different responses to wear, schematic diagrams were proposed to outline the main features of the corrosion-erosion process and the individual roles of erosion and corrosion. Discrete differences, in terms of the respective erosion and corrosion processes, between the TiN and CrN coatings, and between the mild and stainless steels, were also investigated and discussed.

KW - PVD coatings

KW - TiN

KW - CrN

KW - erosion

KW - corrosion

KW - erosion-corrosion

KW - titanium nitride coatings

KW - stainless steel

KW - abrasive wear

KW - films

KW - behavior

KW - resistance

KW - AISI-304

KW - PH8

KW - ZRN

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DO - 10.1023/A:1019186918225

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SN - 1023-8883

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