Micro-scale Real-Time Wear Dynamics Investigated by Synchroton Radiation
In situ wear measurements on a hard coating of TiAlN and CrN layers deposited on vitreous carbon have been carried out with synchroton radiation. The results show that wear dynamics can be successfully monitored on a lateral micrometer scale and with a submicrometer depth resolution. The wear process is highly irregular and the local wear rate may vary strongly from one position to another in the same wear track. Most of the ridges and grooves are generated within the first 500 nm and exist over several micrometers.
The authors thank Cornelius Strohm and other staff members at beam line ID 24 at ESRF for competent assistance. This work has been supported by the Danish Strategic Research Council with the NABIIT grant 2106-05-0035.
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