Synthesis and Characterization of Ti–Nb Alloy Films Obtained by Magnetron Sputtering and Low-Energy High-Current Electron Beam Treatment
The aim of the present work is to investigate the synthesis of Ti–Nb alloy films obtained by the physical vapor deposition (PVD) magnetron sputtering of Nb films on Ti substrates, followed by low-energy high-current electron beam (LEHCEB) alloying treatment. Ti–Nb alloys were synthetized under two d...
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2021-06-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/12/3238 |
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| author | Federico Morini Massimiliano Bestetti Silvia Franz Antonello Vicenzo Alexey Markov Evgeniy Yakovlev |
| author_facet | Federico Morini Massimiliano Bestetti Silvia Franz Antonello Vicenzo Alexey Markov Evgeniy Yakovlev |
| author_sort | Federico Morini |
| collection | DOAJ |
| description | The aim of the present work is to investigate the synthesis of Ti–Nb alloy films obtained by the physical vapor deposition (PVD) magnetron sputtering of Nb films on Ti substrates, followed by low-energy high-current electron beam (LEHCEB) alloying treatment. Ti–Nb alloys were synthetized under two different regimes, one by varying the deposited amount of Nb (from 25 to 150 nm) and treating samples with low applied voltages and a number of pulses (three pulses at either 20 or 25 kV), the second by setting the amount of Nb (100 nm) and alloying it at a higher applied voltage with a different number of pulses (from 10 to 50 at 25 and 30 kV). The synthetized Ti–Nb alloys were characterized by XRD and GDOES for phase identification and chemical composition; SEM and optical microscopy were employed for morphology evaluation; compositional investigation was done by EDS analysis and mechanical properties were evaluated by microindentation tests. LEHCEB treatment led to the formation of metastable phases (α′, α″ and β) which, together with the grain refinement effect, was responsible for improved mechanical properties. |
| first_indexed | 2024-03-10T10:28:46Z |
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| id | doaj.art-e3b5cab5bc8c422eb99270ca5b7171d4 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T10:28:46Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-e3b5cab5bc8c422eb99270ca5b7171d42023-11-21T23:49:18ZengMDPI AGMaterials1996-19442021-06-011412323810.3390/ma14123238Synthesis and Characterization of Ti–Nb Alloy Films Obtained by Magnetron Sputtering and Low-Energy High-Current Electron Beam TreatmentFederico Morini0Massimiliano Bestetti1Silvia Franz2Antonello Vicenzo3Alexey Markov4Evgeniy Yakovlev5Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 7 Via Luigi Mancinelli, 20131 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 7 Via Luigi Mancinelli, 20131 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 7 Via Luigi Mancinelli, 20131 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 7 Via Luigi Mancinelli, 20131 Milano, ItalyTomsk Scientific Center SB RAS, 10/4 Akademicheskii Pr, 634055 Tomsk, RussiaTomsk Scientific Center SB RAS, 10/4 Akademicheskii Pr, 634055 Tomsk, RussiaThe aim of the present work is to investigate the synthesis of Ti–Nb alloy films obtained by the physical vapor deposition (PVD) magnetron sputtering of Nb films on Ti substrates, followed by low-energy high-current electron beam (LEHCEB) alloying treatment. Ti–Nb alloys were synthetized under two different regimes, one by varying the deposited amount of Nb (from 25 to 150 nm) and treating samples with low applied voltages and a number of pulses (three pulses at either 20 or 25 kV), the second by setting the amount of Nb (100 nm) and alloying it at a higher applied voltage with a different number of pulses (from 10 to 50 at 25 and 30 kV). The synthetized Ti–Nb alloys were characterized by XRD and GDOES for phase identification and chemical composition; SEM and optical microscopy were employed for morphology evaluation; compositional investigation was done by EDS analysis and mechanical properties were evaluated by microindentation tests. LEHCEB treatment led to the formation of metastable phases (α′, α″ and β) which, together with the grain refinement effect, was responsible for improved mechanical properties.https://www.mdpi.com/1996-1944/14/12/3238titanium–niobium alloysgraded alloylow-energy high-current electron beam |
| spellingShingle | Federico Morini Massimiliano Bestetti Silvia Franz Antonello Vicenzo Alexey Markov Evgeniy Yakovlev Synthesis and Characterization of Ti–Nb Alloy Films Obtained by Magnetron Sputtering and Low-Energy High-Current Electron Beam Treatment Materials titanium–niobium alloys graded alloy low-energy high-current electron beam |
| title | Synthesis and Characterization of Ti–Nb Alloy Films Obtained by Magnetron Sputtering and Low-Energy High-Current Electron Beam Treatment |
| title_full | Synthesis and Characterization of Ti–Nb Alloy Films Obtained by Magnetron Sputtering and Low-Energy High-Current Electron Beam Treatment |
| title_fullStr | Synthesis and Characterization of Ti–Nb Alloy Films Obtained by Magnetron Sputtering and Low-Energy High-Current Electron Beam Treatment |
| title_full_unstemmed | Synthesis and Characterization of Ti–Nb Alloy Films Obtained by Magnetron Sputtering and Low-Energy High-Current Electron Beam Treatment |
| title_short | Synthesis and Characterization of Ti–Nb Alloy Films Obtained by Magnetron Sputtering and Low-Energy High-Current Electron Beam Treatment |
| title_sort | synthesis and characterization of ti nb alloy films obtained by magnetron sputtering and low energy high current electron beam treatment |
| topic | titanium–niobium alloys graded alloy low-energy high-current electron beam |
| url | https://www.mdpi.com/1996-1944/14/12/3238 |
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