Cargando…
Effect of Ti Transition Layer Thickness on the Structure, Mechanical and Adhesion Properties of Ti-DLC Coatings on Aluminum Alloys
Multilayers of Ti doped diamond-like carbon (Ti-DLC) coatings were deposited on aluminum alloys by filtered cathodic vacuum arc (FCVA) technology using C(2)H(2) as a reactive gas. The effect of different Ti transition layer thicknesses on the structure, mechanical and adhesion properties of the coat...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6164031/ https://www.ncbi.nlm.nih.gov/pubmed/30223611 http://dx.doi.org/10.3390/ma11091742 |
_version_ | 1783359503267266560 |
---|---|
author | Cao, Hongshuai Qi, Fugang Ouyang, Xiaoping Zhao, Nie Zhou, Yun Li, Beibei Luo, Wenzhong Liao, Bin Luo, Jun |
author_facet | Cao, Hongshuai Qi, Fugang Ouyang, Xiaoping Zhao, Nie Zhou, Yun Li, Beibei Luo, Wenzhong Liao, Bin Luo, Jun |
author_sort | Cao, Hongshuai |
collection | PubMed |
description | Multilayers of Ti doped diamond-like carbon (Ti-DLC) coatings were deposited on aluminum alloys by filtered cathodic vacuum arc (FCVA) technology using C(2)H(2) as a reactive gas. The effect of different Ti transition layer thicknesses on the structure, mechanical and adhesion properties of the coatings, was investigated by scanning electron microscopy (SEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), nanoindentation and a scratch tester. The results showed that the Ti transition layer could improve interfacial transition between the coating and the substrate, which was beneficial in obtaining excellent adhesion of the coatings. The Ti transition layer thickness had no significant influence on the composition and structure of the coatings, whereas it affected the distortion of the sp(2)-C bond angle and length. Nanoindentation and scratch test results indicated that the mechanical and adhesion properties of the Ti-DLC coatings depended on the Ti transition layer thickness. The Ti transition layer proved favorable in decreasing the residual compressive stress of the coating. As the Ti transition layer thickness increased, the hardness value of the coating gradually decreased. However, its elastic modulus and adhesion exhibited an initial decrease followed by an increasing fluctuation. Among them, the Ti-DLC coating with a Ti transition layer thickness of 1.1 μm exhibited superior mechanical properties. |
format | Online Article Text |
id | pubmed-6164031 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-61640312018-10-12 Effect of Ti Transition Layer Thickness on the Structure, Mechanical and Adhesion Properties of Ti-DLC Coatings on Aluminum Alloys Cao, Hongshuai Qi, Fugang Ouyang, Xiaoping Zhao, Nie Zhou, Yun Li, Beibei Luo, Wenzhong Liao, Bin Luo, Jun Materials (Basel) Article Multilayers of Ti doped diamond-like carbon (Ti-DLC) coatings were deposited on aluminum alloys by filtered cathodic vacuum arc (FCVA) technology using C(2)H(2) as a reactive gas. The effect of different Ti transition layer thicknesses on the structure, mechanical and adhesion properties of the coatings, was investigated by scanning electron microscopy (SEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), nanoindentation and a scratch tester. The results showed that the Ti transition layer could improve interfacial transition between the coating and the substrate, which was beneficial in obtaining excellent adhesion of the coatings. The Ti transition layer thickness had no significant influence on the composition and structure of the coatings, whereas it affected the distortion of the sp(2)-C bond angle and length. Nanoindentation and scratch test results indicated that the mechanical and adhesion properties of the Ti-DLC coatings depended on the Ti transition layer thickness. The Ti transition layer proved favorable in decreasing the residual compressive stress of the coating. As the Ti transition layer thickness increased, the hardness value of the coating gradually decreased. However, its elastic modulus and adhesion exhibited an initial decrease followed by an increasing fluctuation. Among them, the Ti-DLC coating with a Ti transition layer thickness of 1.1 μm exhibited superior mechanical properties. MDPI 2018-09-16 /pmc/articles/PMC6164031/ /pubmed/30223611 http://dx.doi.org/10.3390/ma11091742 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Cao, Hongshuai Qi, Fugang Ouyang, Xiaoping Zhao, Nie Zhou, Yun Li, Beibei Luo, Wenzhong Liao, Bin Luo, Jun Effect of Ti Transition Layer Thickness on the Structure, Mechanical and Adhesion Properties of Ti-DLC Coatings on Aluminum Alloys |
title | Effect of Ti Transition Layer Thickness on the Structure, Mechanical and Adhesion Properties of Ti-DLC Coatings on Aluminum Alloys |
title_full | Effect of Ti Transition Layer Thickness on the Structure, Mechanical and Adhesion Properties of Ti-DLC Coatings on Aluminum Alloys |
title_fullStr | Effect of Ti Transition Layer Thickness on the Structure, Mechanical and Adhesion Properties of Ti-DLC Coatings on Aluminum Alloys |
title_full_unstemmed | Effect of Ti Transition Layer Thickness on the Structure, Mechanical and Adhesion Properties of Ti-DLC Coatings on Aluminum Alloys |
title_short | Effect of Ti Transition Layer Thickness on the Structure, Mechanical and Adhesion Properties of Ti-DLC Coatings on Aluminum Alloys |
title_sort | effect of ti transition layer thickness on the structure, mechanical and adhesion properties of ti-dlc coatings on aluminum alloys |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6164031/ https://www.ncbi.nlm.nih.gov/pubmed/30223611 http://dx.doi.org/10.3390/ma11091742 |
work_keys_str_mv | AT caohongshuai effectoftitransitionlayerthicknessonthestructuremechanicalandadhesionpropertiesoftidlccoatingsonaluminumalloys AT qifugang effectoftitransitionlayerthicknessonthestructuremechanicalandadhesionpropertiesoftidlccoatingsonaluminumalloys AT ouyangxiaoping effectoftitransitionlayerthicknessonthestructuremechanicalandadhesionpropertiesoftidlccoatingsonaluminumalloys AT zhaonie effectoftitransitionlayerthicknessonthestructuremechanicalandadhesionpropertiesoftidlccoatingsonaluminumalloys AT zhouyun effectoftitransitionlayerthicknessonthestructuremechanicalandadhesionpropertiesoftidlccoatingsonaluminumalloys AT libeibei effectoftitransitionlayerthicknessonthestructuremechanicalandadhesionpropertiesoftidlccoatingsonaluminumalloys AT luowenzhong effectoftitransitionlayerthicknessonthestructuremechanicalandadhesionpropertiesoftidlccoatingsonaluminumalloys AT liaobin effectoftitransitionlayerthicknessonthestructuremechanicalandadhesionpropertiesoftidlccoatingsonaluminumalloys AT luojun effectoftitransitionlayerthicknessonthestructuremechanicalandadhesionpropertiesoftidlccoatingsonaluminumalloys |