Comparison between plasma- and HVOF-sprayed ceramic coatings. Part II: tribological behaviour

被引：21

作者：

Bolelli, G. ^{[1
]}

Lusvarghi, L. ^{[1
]}

Manfredini, T. ^{[1
]}

Mantini, F. Pighetti ^{[1
]}

Turunen, E. ^{[2
]}

Varis, T. ^{[2
]}

Hannula, S-P. ^{[2
,3
]}

机构：

[1] Univ Modena & Reggio Emilia, Dipartimento Ingn Mat & Ambiente, I-41100 Modena, Italy

[2] VTT Tech Res Ctr Finland, FIN-02044 Espoo, Finland

[3] Helsinki Univ Technol TKK, Mat Sci Lab, FIN-02015 Helsinki, Finland

来源：

INTERNATIONAL JOURNAL OF SURFACE SCIENCE AND ENGINEERING | 2007年 / 1卷 / 01期

关键词：

high velocity oxygen-fuel (HVOF) flame spraying; plasma spraying; ceramic coatings; Al2O3; Cr2O3; pin-on-disk wear test; dry particles abrasion test;

D O I：

10.1504/IJSURFSE.2007.013621

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This is the second part of comparative study between High Velocity Oxygen-Fuel (HVOF) flame-sprayed and Atmospheric Plasma-Sprayed (APS) ceramics. Dry particles abrasion test and dry sliding wear test at room temperature, 400 degrees C and 700 degrees C are performed. In dry sliding against SiC, at room temperature stable tribofilms are formed and mild wear (<10(-6) mm(3)/(Nm)) occurs for all coatings. When temperature and normal load increase, making brittle cracking a significant wear mechanism, HVOF coatings become Superior to APS ones, thanks to higher toughness. In dry particles abrasion, brittle fracture prevails; therefore, the tougher HVOF coatings outperform APS ones.

引用

页码：62 / 79

页数：18

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