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| Influence of CrNx/TiyCr1-yN Multilayer Thickness on Hardness and Binding Force |
| ZHANG Xin1, WEN Peigang2 |
(1. Beijing Research Institute of Automation for Machinery Industry, Beijing 100120, China;
2. AECC Bejing Institute of Aeronautical Materials, Beijing 100095, China) |
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Abstract In order to investigate the influence of laminate periodicity on hardness and wearability, CrNx/TiyCr1-yN
coatings with 5, 13 and 26 periodic multilayer are prepared on AM355 steel substrate by metal evaporation vacuum arc ion
source (MEVVA) and filter cathodic vacuum arc deposition technology. The morphology and phase structure of coatings
are observed and analyzed by field emission scanning electron microscope (FESEM) and X-ray diffraction (XRD) respectively.
The hardness of coating is tested by microhardness tester and the bond strength is measured by scratch tester. The
results show that CrNx/TiyCr1-y coatings with multilayer have dense structure and good bond strength. With the increase of
laminate periodicity, the hardness of multilayer decreases while the bond strength shows a trend of increasing at first and
slowly lower later.
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2017, 
