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A diamond-like carbon thin film was coated onto a stainless steel substrate using plasma assisted chemical vapour deposition (PACVD). Instrumented indentation and scratching were used, supported by focused ion beam (FIB) microscopy, to explore deformation and fracture behaviours of this coating system. The formation and growth of ring and radial cracks in the coating, as well as plastic flow in the...
Recent developments in the contact deformation and fracture of columnar TiN coatings are reviewed. It is shown that columnar films display two regimes of responses: one dominated by columnar sliding at a critical shear stress which is determined substantially by the residual stress in the film, and the other, more damaging response, characterized by fracture. The transition to cracking modes of response...
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