An attempt to evaluate cohesion in WC/Co/Cr coatings by controlled scratching

被引：19

作者：

Hawthorne, HM ^{[1
]}

Xie, Y ^{[1
]}

机构：

[1] Natl Res Council Canada, Surface Technol Tribol Grp, Vancouver, BC V6T 1W5, Canada

来源：

MECCANICA | 2001年 / 36卷 / 06期

关键词：

cohesion; controlled scratching; ductile microfracture; thermal sprayed coatings; tribology;

D O I：

10.1023/A:1016300920619

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

As well as phase composition, microstructural defects and residual stresses influence the wear resistance of WC-based coatings, so their integrity or cohesion may give a guide to their wear behaviour. Parallel scratching by a suitable probe induces increasing scratch interaction with ramp loading on each scratch. Controlled plastic strain has, thus, been accumulated, and ductile microfracture induced, on the surfaces of WC-Co-Cr thermal sprayed coatings. Cohesion criteria based on wear area, acoustic emission, grain fracture and tensile cracking in the scratch groove are described, and results are presented that correlate reasonably well with the erosive wear characteristics of a number of differently sprayed coatings.

引用

页码：675 / 682

页数：8

共 14 条

[1] ABRASION, EROSION AND SCUFFING RESISTANCE OF CARBIDE AND OXIDE CERAMIC THERMAL SPRAYED COATINGS FOR DIFFERENT APPLICATIONS [J].

BARBEZAT, G ;

NICOLL, AR ;

SICKINGER, A .

WEAR, 1993, 162 :529-537

[2] Abrasive wear resistance of plasma-sprayed tungsten carbide cobalt coatings [J].

Chen, H ;

Hutchings, IM .

SURFACE & COATINGS TECHNOLOGY, 1998, 107 (2-3) :106-114

[3] Wear rates and specific energies of some ceramic, cermet and metallic coatings determined in the Coriolis erosion tester [J].

Clark, HM ;

Hawthorne, HM ;

Xie, Y .

WEAR, 1999, 233 :319-327

[4] Cohesion in plasma-sprayed coatings - A comparison between evaluation methods [J].

Erickson, LC ;

Westergard, R ;

Wiklund, U ;

Axen, N ;

Hawthorne, HM ;

Hogmark, S .

WEAR, 1998, 214 (01) :30-37

[5] Comparison of slurry and dry erosion behaviour of some HVOF thermal sprayed coatings [J].

Hawthorne, HM ;

Arsenault, B ;

Immarigeon, JP ;

Legoux, JG ;

Parameswaran, VR .

WEAR, 1999, 225 :825-834

[6]

HAWTHORNE HM, 2001, P INT TRIB C NAG 200, V2, P1031

[7] 3-DIMENSIONAL SHAPE EFFECT ON ABRASIVE WEAR [J].

KATO, K ;

HOKKIRIGAWA, K ;

KAYABA, T ;

ENDO, Y .

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 1986, 108 (03) :346-351

[8]

Kim H., 1994, J THERM SPRAY TECHN, V3, P169, DOI [10.1007/BF02648274, DOI 10.1007/BF02648274]

[9] Influence of heat treatment on the abrasive wear behaviour of HVOF sprayed WC-Co coatings [J].

Stewart, DA ;

Shipway, PH ;

McCartney, DG .

SURFACE & COATINGS TECHNOLOGY, 1998, 105 (1-2) :13-24

[10] Effect of carbide grain size on the sliding and abrasive wear behavior of thermally sprayed WC-Co coatings [J].

Usmani, S ;

Sampath, S ;

Houck, DL ;

Lee, D .

TRIBOLOGY TRANSACTIONS, 1997, 40 (03) :470-478

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