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M. THOMPSON1, C. GHEORGHIES2,*
Physical vapour deposited coatings have a complex structure, and there is a need to characterize the failure of such coatings and this has been carried out by a non-destructive method, namely acoustic emission. In this paper simple scratch tests are described in order to study some characteristics of nitrogen-doped stainless steel coatings on 40CrMo4 constructions steel. Scratch tests were performed in order to induce a mechanical failure in the coatings. It is shown that the nucleation of isolated cracks mechanism that lead to failure can be monitored by certain characteristics of the acoustic signal..
Coating, Crack, Microscopy, Scratch test, Adherence.
M. THOMPSON, C. GHEORGHIES, Analysis in real time of isolated cracks within a coating, Optoelectronics and Advanced Materials - Rapid Communications, 2, 3, March 2008, pp.148-152 (2008).
Submitted at: Feb. 6, 2008
Accepted at: March 16, 2008
Optoelectronics and Advanced Materials - Rapid Communications
(2024): Impact Factor = 0.4 - Journal Citation Reports (Clarivate Analytics, 2025)
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