An investigating of how mechanical properties impact the erosion resistance of CrN, CrTiN, and CrTiSiN PVD coatings
One main challenge in many industrial applications is the damage caused by erosion and surface engineering is the leading solution for increasing the material's resistance to erosion. In the present study, CrN, CrTiN, and CrTiSiN coatings were applied on 410 martensitic steel through cathodic a...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
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| Series: | Results in Surfaces and Interfaces |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666845925000091 |
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| Summary: | One main challenge in many industrial applications is the damage caused by erosion and surface engineering is the leading solution for increasing the material's resistance to erosion. In the present study, CrN, CrTiN, and CrTiSiN coatings were applied on 410 martensitic steel through cathodic arc evaporation (CAE) technique with the goal of increasing erosion resistance. XRD was used to identify the phases. Also, the coatings' surface morphology and cross-sectional area were studied by FESEM. The mechanical properties of the coatings were evaluated by nanoindentation testing. To investigate the erosion behavior of the coatings, the erosion test was carried out by the impingment of SiO2 particles at two angles of 30° and 90°. The hardness of the substrate, CrN, CrTiN, and CrTiSiN coatings were calculated as 4, 17, 20, and 23 GPa, respectively. The results indicate a 70% reduction in mass loss at the incident angle of 30° and a 19.5% reduction at 90° for the CrTiN coating compared to the substrate. H/E and H3/E2, were used to investigate the relationship between mechanical properties and erosion behavior. Based on this, the substrate with the lowest H3/E2 (1 MPa) has the highest erosion rate of 0.32, and the CrTiN coating with the highest H3/E2 (117 MPa) has the lowest erosion rate of 0.04 at a 30° angle among the studied samples. Finally, based on the results, applying nitride coatings improves mechanical properties and increases the erosion resistance of the substrate. |
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| ISSN: | 2666-8459 |