Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN
In tribological applications, the degradation of alloy nitride coatings is an issue of increasing concern. The drawbacks of monolayer hard coatings can be overcome using a multilayer coating system. In this study, single-layer TiAlNbN and multilayer TiAlNbN/AlCrN coatings with AlCrN layer addition i...
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MDPI AG
2022-11-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/21/7750 |
| _version_ | 1797467448084004864 |
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| author | Yin-Yu Chang Kai-Chun Huang |
| author_facet | Yin-Yu Chang Kai-Chun Huang |
| author_sort | Yin-Yu Chang |
| collection | DOAJ |
| description | In tribological applications, the degradation of alloy nitride coatings is an issue of increasing concern. The drawbacks of monolayer hard coatings can be overcome using a multilayer coating system. In this study, single-layer TiAlNbN and multilayer TiAlNbN/AlCrN coatings with AlCrN layer addition into TiAlNbN were prepared by cathodic arc evaporation (CAE). The multilayer TiAlNbN/AlCrN showed B1 NaCl structure, and the columnar structure continued from the bottom interlayer of CrN to the top multilayers without interruption. After AlCrN addition, the TiAlNbN/AlCrN coating consisted of TiAlNbN and AlCrN multilayers with a periodic thickness of 13.2 nm. The layer thicknesses of the TiAlNbN and AlCrN were 7 nm and 6.2 nm, respectively. The template growth of the TiAlNbN and AlCrN sublayers stabilized the cubic phases. The introduction of bottom CrN and the TiAlNbN/CrN transition layers possessed com-position-gradient that improved the adhesion strength of the coatings. The hardness of the deposited TiAlNbN was 30.2 ± 1.3 GPa. The TiAlNbN/AlCrN had higher hardness of 31.7 ± 3.5 GPa and improved tribological performance (wear rate = 8.2 ± 0.6 × 10<sup>−7</sup> mm<sup>3</sup>/Nm) than those of TiAlNbN, which were because the multilayer architecture with AlCrN addition effectively resisted abrasion wear. |
| first_indexed | 2024-03-09T18:52:50Z |
| format | Article |
| id | doaj.art-5db6973520254aa79a848542f2002056 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T18:52:50Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-5db6973520254aa79a848542f20020562023-11-24T05:40:14ZengMDPI AGMaterials1996-19442022-11-011521775010.3390/ma15217750Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrNYin-Yu Chang0Kai-Chun Huang1Department of Mechanical and Computer-Aided Engineering, National Formosa University, Yunlin 63201, TaiwanDepartment of Mechanical and Computer-Aided Engineering, National Formosa University, Yunlin 63201, TaiwanIn tribological applications, the degradation of alloy nitride coatings is an issue of increasing concern. The drawbacks of monolayer hard coatings can be overcome using a multilayer coating system. In this study, single-layer TiAlNbN and multilayer TiAlNbN/AlCrN coatings with AlCrN layer addition into TiAlNbN were prepared by cathodic arc evaporation (CAE). The multilayer TiAlNbN/AlCrN showed B1 NaCl structure, and the columnar structure continued from the bottom interlayer of CrN to the top multilayers without interruption. After AlCrN addition, the TiAlNbN/AlCrN coating consisted of TiAlNbN and AlCrN multilayers with a periodic thickness of 13.2 nm. The layer thicknesses of the TiAlNbN and AlCrN were 7 nm and 6.2 nm, respectively. The template growth of the TiAlNbN and AlCrN sublayers stabilized the cubic phases. The introduction of bottom CrN and the TiAlNbN/CrN transition layers possessed com-position-gradient that improved the adhesion strength of the coatings. The hardness of the deposited TiAlNbN was 30.2 ± 1.3 GPa. The TiAlNbN/AlCrN had higher hardness of 31.7 ± 3.5 GPa and improved tribological performance (wear rate = 8.2 ± 0.6 × 10<sup>−7</sup> mm<sup>3</sup>/Nm) than those of TiAlNbN, which were because the multilayer architecture with AlCrN addition effectively resisted abrasion wear.https://www.mdpi.com/1996-1944/15/21/7750multilayerhard coatingtribologicalcathodic arc evaporation |
| spellingShingle | Yin-Yu Chang Kai-Chun Huang Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN Materials multilayer hard coating tribological cathodic arc evaporation |
| title | Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN |
| title_full | Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN |
| title_fullStr | Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN |
| title_full_unstemmed | Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN |
| title_short | Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN |
| title_sort | improvement of tribological performance of tialnbn hard coatings by adding alcrn |
| topic | multilayer hard coating tribological cathodic arc evaporation |
| url | https://www.mdpi.com/1996-1944/15/21/7750 |
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