Abstract
The effects of hardness ratio of coating to substrate on the scratching characteristics of four different kinds of coatings (Al, W, TiN and Ti1-xAlxN) deposited on aluminium, tungsten carbide and three types of M42 high speed steel were investigated. Based on the observed failure modes on the scratch tracks using scanning electron microscopy, coating failure maps consisting of regions of no failure mixed failure total coating break-through are constructed. The loading required for a particular failure mode decreases with increasing hardness ratio.
| Original language | English |
|---|---|
| Pages (from-to) | 3-21 |
| Journal | International Journal of Surface Science and Engineering |
| Volume | 1 |
| Issue number | 1 |
| DOIs | |
| Publication status | Online published - 9 May 2007 |
Funding
The authors acknowledge the access to facilities in the Advanced Coatings Applied Research Laboratory (ACARL) supported by the Innovation Technology Fund from the ITC HKSAR. Thanks are also due to the Hong Kong Research Grants Council CERG (project number: CityU1173/03E) for financial support of this project. YWM thanks the Australian Research Council for the award of a Federation Fellowship tenable at the University of Sydney.
Research Keywords
- coatings
- failure map
- hardness ratio
- scratch test
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