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Joining of Ti6Al4V to Al(2)O(3) Using Nanomultilayers
Diffusion bonding of Ti6Al4V to Al(2)O(3) using Ni/Ti reactive nanomultilayers as interlayer material was investigated. For this purpose, Ni/Ti multilayer thin films with 12, 25, and 60 nm modulation periods (bilayer thickness) were deposited by d.c. magnetron sputtering onto the base materials’ sur...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8875220/ https://www.ncbi.nlm.nih.gov/pubmed/35215034 http://dx.doi.org/10.3390/nano12040706 |
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author | Silva, Marcionilo Ramos, Ana Sofia Vieira, Maria Teresa Simões, Sónia |
author_facet | Silva, Marcionilo Ramos, Ana Sofia Vieira, Maria Teresa Simões, Sónia |
author_sort | Silva, Marcionilo |
collection | PubMed |
description | Diffusion bonding of Ti6Al4V to Al(2)O(3) using Ni/Ti reactive nanomultilayers as interlayer material was investigated. For this purpose, Ni/Ti multilayer thin films with 12, 25, and 60 nm modulation periods (bilayer thickness) were deposited by d.c. magnetron sputtering onto the base materials’ surface. The joints were processed at 750 and 800 °C with a dwell time of 60 min and under a pressure of 5 MPa. Microstructural characterization of the interfaces was conducted by scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDS), and electron backscatter diffraction (EBSD). The mechanical characterization of the joints was performed by nanoindentation, and hardness and reduced Young’s modulus distribution maps were obtained across the interfaces. The joints processed at 800 °C using the three modulation periods were successful, showing the feasibility of using these nanolayered films to improve the diffusion bonding of dissimilar materials. Using modulation periods of 25 and 60 nm, it was also possible to reduce the bonding temperature to 750 °C and obtain a sound interface. The interfaces are mainly composed of NiTi and NiTi(2) phases. The nanoindentation experiments revealed that the hardness and reduced Young’s modulus at the interfaces reflect the observed microstructure. |
format | Online Article Text |
id | pubmed-8875220 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-88752202022-02-26 Joining of Ti6Al4V to Al(2)O(3) Using Nanomultilayers Silva, Marcionilo Ramos, Ana Sofia Vieira, Maria Teresa Simões, Sónia Nanomaterials (Basel) Article Diffusion bonding of Ti6Al4V to Al(2)O(3) using Ni/Ti reactive nanomultilayers as interlayer material was investigated. For this purpose, Ni/Ti multilayer thin films with 12, 25, and 60 nm modulation periods (bilayer thickness) were deposited by d.c. magnetron sputtering onto the base materials’ surface. The joints were processed at 750 and 800 °C with a dwell time of 60 min and under a pressure of 5 MPa. Microstructural characterization of the interfaces was conducted by scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDS), and electron backscatter diffraction (EBSD). The mechanical characterization of the joints was performed by nanoindentation, and hardness and reduced Young’s modulus distribution maps were obtained across the interfaces. The joints processed at 800 °C using the three modulation periods were successful, showing the feasibility of using these nanolayered films to improve the diffusion bonding of dissimilar materials. Using modulation periods of 25 and 60 nm, it was also possible to reduce the bonding temperature to 750 °C and obtain a sound interface. The interfaces are mainly composed of NiTi and NiTi(2) phases. The nanoindentation experiments revealed that the hardness and reduced Young’s modulus at the interfaces reflect the observed microstructure. MDPI 2022-02-21 /pmc/articles/PMC8875220/ /pubmed/35215034 http://dx.doi.org/10.3390/nano12040706 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Silva, Marcionilo Ramos, Ana Sofia Vieira, Maria Teresa Simões, Sónia Joining of Ti6Al4V to Al(2)O(3) Using Nanomultilayers |
title | Joining of Ti6Al4V to Al(2)O(3) Using Nanomultilayers |
title_full | Joining of Ti6Al4V to Al(2)O(3) Using Nanomultilayers |
title_fullStr | Joining of Ti6Al4V to Al(2)O(3) Using Nanomultilayers |
title_full_unstemmed | Joining of Ti6Al4V to Al(2)O(3) Using Nanomultilayers |
title_short | Joining of Ti6Al4V to Al(2)O(3) Using Nanomultilayers |
title_sort | joining of ti6al4v to al(2)o(3) using nanomultilayers |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8875220/ https://www.ncbi.nlm.nih.gov/pubmed/35215034 http://dx.doi.org/10.3390/nano12040706 |
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