A Comparative Study on Tribological Characteristics between Ni-P Electroless Plating and TiAlN Coating on Anodized Aluminum Alloy

아노다이징된 알루미늄 합금에 대한 TiAlN 코팅, 무전해 Ni-P 도금의 트라이볼로지 특성 비교

  • Lee, Gyu-Sun (Dept. of Mechanical Engineering, SungKyunKwan University) ;
  • Bae, Sung-Hoon (Dept. of Mechanical Engineering, SungKyunKwan University) ;
  • Lee, Young-Ze (Dept. of Mechanical Engineering, SungKyunKwan University)
  • 이규선 (성균관대학교 기계공학과) ;
  • 배성훈 (성균관대학교 기계공학과) ;
  • 이영제 (성균관대학교 기계공학과)
  • Received : 2009.09.20
  • Accepted : 2009.12.05
  • Published : 2010.02.28


A ceramic coating is a surface treatment method that is being used widely in the industrial field, recently. Ni-P plating is also being used widely because of its corrosion resistance and low cost. An anodizing method is applicable to aluminum alloy. An anodizing method generates a thick oxide layer on the surface and then, that heightens hardness and protects the surface. These surface treatments are applied to various mechanical components and treated surfaces relatively move one another. In this study, tribological characteristics of Ni-P plating and TiAlN coating on anodized Al alloy are compared. The counterpart, anodized Al alloy, is worn out abrasively by Ni-P plating and TiAlN coating that have higher hardness. Abrasively worn debris accumulated on the surfaces of Ni-P plating and TiAlN coating, and then transferred layer is formed. This transferred layer affects the amplitude of variation of friction coefficient, which is related to noise and vibration. The amplitude of variation of friction coefficient of Ni-P plating is lower than those of TiAlN coating during the tests.



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