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Contact damage in TiN coatings on steel |
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| Authors: | S. BhowmickA.N. Kale V. Jayaram S.K. Biswas |
| Affiliation: | a Department of Metallurgy, Indian Institute of Science, Bangalore 560 012, India b Multi-Arc (India) Ltd., Pune 411 018, India c Department of Mechanical Engineering, Indian Institute of Science, Bangalore 560 012, India |
| Abstract: | Damage mechanisms beneath Vickers indentations are examined on 5 μm TiN film deposited on stainless steel substrate as a function of load. Prominent mode of cracking includes surface edge cracks and subsurface inclined cracks. No interfacial delaminations were noted at the TiN/steel interface. The tangential traction, radial stress and shear stress distribution around an axisymmetric indentation field are used to assess the driving force for crack propagation. |
| Keywords: | Titanium nitride Indentation Fracture |
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