Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of Wear Chracteristics for $Al_2O_3-40%TiO_2$Sprayed on Casted Aluminum Alloy

주조용 알루미늄 합금의 $Al_2O_3-40%TiO_2$ 용사층에 대한 마멸특성 평가

  • 채영훈 (경북대학교 기계공학과 대학원) ;
  • 김석삼 (경북대학교 기계공학부)
  • Published : 1999.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

The wear behavior of $Al_2$O$_3$-40%TiO$_2$deposited on casted aluminum alloy (ASTM A356) by APS (Air Plasma Spray) against SiC ball has been investigated in this work. Wear tests were carried out at room temperature. The friction coefficient of $Al_2$O$_3$-40%TiO$_2$coating is lower than that of pure $Al_2$O$_3$coating(APS). $Al_2$O$_3$-40%TiO$_2$coating indicated the existence of the optimal coating thickness. It is found that voids and pores of coating surface resulted in the generation of cracks, and the cohesive of splats and the porosity of surface play a role in wear characteristics. It is suggested that the mismatch of thermal expansion of substrate and coating play an important role in wear performance. Tension and compression under thermo-mechanical stress may be occurred by the mismatch between thermal expansion of substrate and coating. The crack propagation above interface is observed in SEM.

Keywords

References

  1. Meeting H. School Technike Plasma Spraying : Materials, Applications and Systems for Industrial Coatings Nicoll,A.R.
  2. Wear v.169 Plasmasprayed coating treated with lasers: tribological behaviour of Cr₂O₃ Cuetos,J.M.;Fernandez,E.;Vijande,R.
  3. Wear v.181;182;183 Sliding wear of a plasma-sprayed Al₂O₃coating Fernandez,J.E.;Rodriguez,R.;Wang,Y.;Vijande,R.;Rincon,A.
  4. Wear v.128 The analysis of the friction and wear mechanisms of plasma-sprayed coating at 450°C Wang,Y.;Jin,Y.;Wen,S.
  5. Wear v.128 The analysis of the chemical structure and properties of ceramic surface films in friction using SEM, AES and Microregion X-ray diffraction Wang,Y.;Jin,Y.;Wen,S.
  6. Wear v.134 The inspection of sliding surface and subsurface of plasma-sprayed using scanning acoustic microscopy Wang,Y.;Jin,Y.;Wen,S.
  7. Wear v.160 Effects of additives on friction and wear behaviour of Cr₂O₃coating Wei,J.;Xue,Q.
  8. Wear v.148 Wear and microstructure in fine ceramic coatings Vijande-Diaz,R.;Belzunce,J.;Fernandez,E.;Rincon,A.;Perez,M.C.
  9. Surface and Coating Technology v.82 The sliding wear of plasma sprayed alumina Bull,A.J.;Kingswell,R.;Scott,K.T.
  10. Thin Solid Films v.157 Correlation of process and system parameters with structure and properties of physically vapour-deposited hard coating Rickerby,D.S.;Burnett,P.J.
  11. Proc. 5th National Thermal Spray Conf. Properties of alumina based coating deposited by plasma and high velocity combustion processes Niemi,K.J.;Vuoristo,P.M.J.;Mantyla,T.A.
  12. Wear v.148 Wear and microstructure in fine ceramic coatings Vijande,R.;Belzunce,J.;Fernandez,E.;Rincon,A.;Perez,M.C.
  13. Doctoral Thesis, State University of New York A microstructural investigation of plasma sprayed metal and oxide coatings Safai,S.
  14. Tribology transactions v.38 no.4 Abrasive wear performance of Cr₂C₂-25%NiCr coatings by plasma spray and CDS detonation spray Barbezat,G.;Nicol,A.R.;Jin,Y.S.;Wang,Y.;Sheng,X.Y.
  15. Surface and Coating Technology v.39;40 A review of micro-structure and properties of plasma sprayed ceramic coatings McPherson,R.
  16. Meeting H. School Technike Plasma Spraying: Matreisls, Applications and Systems for Industrial Coatings Nicoll,R.
  17. Wear v.198 An analysis of fracture and delamination in thin coatings subjected to contact loading Oliveira,S.A.G.;Bower,A.F.
  18. ASME J. Lubr. Technol. v.94 Contact stress between an elastic cylinder and layered elastic solid Gupta,P.K.;Walowit,J.A.
  19. Mechanics of Coatings Stress determination in elastic coating and substrate under both normal and tangential loads Leroy,J.M.;Villechaise,B.;Dowson,D.(ed.);Taylor,C.M.(ed.);Godet,M.(ed.)
  20. 대한기계학회 논문집(A) v.21 no.5 플라즈마 코팅한 주조용 알루미늄합금의 마찰 및 마멸 특성 채영훈;임정일;박준목;김석삼
  21. 대한기계학회논문집 v.19 no.3 TiN 코팅된 고속도강과 합금공구강의 마멸거동 김석삼;서창민;류춘무;박준목