A study of the wear behavior of diamond-like carbon films under the dry reciprocating sliding contact

• Published in: Wear Vol. 249; no. 9; pp. 800 - 807
• Main Authors: Luo, S.Y, Kuo, J.K, Tsai, T.J, Dai, C.W
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.09.2001; Amsterdam Elsevier Science; New York, NY
• Subjects: Al 2O 3; Al–Si alloy; Applied sciences; DLC; Exact sciences and technology; Friction; Friction, wear, lubrication; Machine components; Mechanical engineering. Machine design; Wear mechanism; DLC; Wear mechanism; Friction; Al 2O 3; Al–Si alloy; Adhesive wear; Aluminium base alloys; Breaking in; Silicon alloy; Sliding wear; Roughness; Rough surface; Experimental study; Diamond structure; Carbon; Dry friction; Abrasive wear; Sliding contact; Reciprocating movement machine; Alumina; Sliding friction; Tribology
• ISSN: 0043-1648; 1873-2577
• DOI: 10.1016/S0043-1648(01)00815-8

This paper describes the tribological behaviors of the DLC films evaporated by graphite cathodic arc method in dry reciprocating sliding against Al–Si alloy and Al 2O 3. The results showed that the frictional behaviors of the system exhibited a pronounced break-in with wear at the counterbody and the DLC film. After break-in stage, the frictional coefficient obtained at a steady-state were about 0.1. During break-in for Al–Si alloy against DLC film, system wear is mainly adhesive wear. After this initial wear stage, fatigue wear and adhesive wear are probably the dominating mechanisms for the counterbody, and abrasive wear and adhesive wear are probably the dominating mechanisms for the DLC film. Besides, for Al 2O 3 reciprocating sliding against the DLC film, system wear during break-in is mainly mocroabrasive wear due to the rough asperities of Al 2O 3 counterbody. After the initial wear stage, fatigue wear is probably the primary mechanism for Al 2O 3 counterbody, and abrasive wear is probably the primary mechanism for the film. In addition, the wear loss was relatively higher for the softer Al–Si alloy and the DLC film.