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Effect of the number of bilayers in Ti/TiN coatings on AISI 316L deposited by sputtering on their hardness, adhesion, and wear
•The nanostructured Ti/TiN multilayer coatings were synthesized by reactive DC sputtering.•The increase of Ti/TiN interfaces favors the increase of the adhesion of coatings.•The increased hardness and adhesion to the substrate improved the tribological properties of the Ti/TiN coatings. In this stud...
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Published in: | Materials letters 2022-06, Vol.316, p.132037, Article 132037 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | •The nanostructured Ti/TiN multilayer coatings were synthesized by reactive DC sputtering.•The increase of Ti/TiN interfaces favors the increase of the adhesion of coatings.•The increased hardness and adhesion to the substrate improved the tribological properties of the Ti/TiN coatings.
In this study, coatings of 4, 8 and 16 Ti/TiN bilayers were synthesized by sputtering at a total deposition time of 64 min to control the total thickness. Hardness and adhesion are enhanced with increasing number of Ti/TiN bilayers, where 16 Ti/TiN bilayers shown the maximum hardness of 8.40 GPa, without decreasing the adhesion to the substrate achieving a load of 22.03 N for a total delamination. This resulted in a better tribological performance with a wear rate of 3.83 × 10−4 mm3/N m. The change in properties was shown to be due to the increase in the number of Ti/TiN bilayers, which generated hardening mechanisms and crack blocking. |
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ISSN: | 0167-577X 1873-4979 |
DOI: | 10.1016/j.matlet.2022.132037 |