Influence of the particle morphology on the Cold Gas Spray deposition behaviour of titanium on aluminum light alloys
| Autor: | J.M. Guilemany, Javier Fernández, Sònia Estradé, Nuria Cinca, J. M. Rebled, Francesca Peiró |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Mechanical Engineering Metallurgy Metals and Alloys chemistry.chemical_element Recrystallization (metallurgy) Focused ion beam Grain size Titanium powder chemistry Mechanics of Materials Aluminium Transmission electron microscopy visual_art Materials Chemistry Aluminium alloy visual_art.visual_art_medium Titanium |
| Zdroj: | Journal of Alloys and Compounds. 554:89-96 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2012.11.069 |
| Popis: | The present work evaluates the deposition behaviour of irregular titanium powder particles impinged by Cold Gas Spraying onto an aluminium 7075-T6 alloy substrate. The influence of their irregular shape on the bonding phenomena, in particle–substrate and particle–particle interfaces are discussed in view of Transmission Electron Microscopy examinations of a Focused Ion Beam lift-out prepared sample. Key aspects will be the jetting-out, the occurrence of oxide layers and grain size refinement. Different structural morphologies could be featured; at the particle–substrate interface, both the aluminium alloy and the titanium side exhibit recrystallization. Titanium particles in intimate contact in small agglomerates during deposition, on the other hand, show grain refinement at their interfaces whereas the original structure is maintained outside those boundaries. |
| Databáze: | OpenAIRE |
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