Synthesis of Ni-Ti Coatings on Different Metallic Substrates by Mechanical Alloying and Subsequent Laser Treatment
| Autor: | Mikhail D. Pavlov, Aleksandr I. Novikov, Aamir Shahzad, Anatoly M. Chirkov, R.S. Khasenova, Dmitry S. Zagrebin, Vladislav Zadorozhnyy, Sergey Kaloshkin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Ni-Ti intermetallics
lcsh:TN1-997 laser treatment Materials science Scanning electron microscope Alloy Metals and Alloys coating engineering.material Microstructure Laser Focused ion beam mechanical alloying law.invention Coating law Vickers hardness test engineering General Materials Science Composite material Ball mill lcsh:Mining engineering. Metallurgy |
| Zdroj: | Metals, Vol 8, Iss 7, p 490 (2018) Metals Volume 8 Issue 7 |
| ISSN: | 2075-4701 |
| Popis: | In this work, we proposed a novel mechanical alloying method to deposit Nix-Tixintermetallic coating on various metallic substrates using laser treatment. Three different substrates (Al-based alloy, Ti-based alloy, and hypoeutectoid steel) were used, and 50&ndash 70 &mu m thick NixTix coating was deposited during the process. For mechanical alloying, we used a self-constructed vibratory ball mill (single chamber) and for laser treatment, we used a &ldquo TrumpfTruDisk 1000&rdquo machine equipped with a four-dimensional control system &ldquo Servokon&rdquo designed specifically for experimental studies. Different laser beam intensities were used for laser operation. The cross-sectional microstructures of coatings were studied using a scanning electron microscope equipped with a Bruker energy-dispersive X-ray Spectrometer (EDS). Additional investigation of a cross-sectional area of one of the NixTix-coated samples was performed with field emission high-performance SEM and focused ion beam (FIB). Phase compositions of the obtained coatings, before and after laser treatment, were analyzed using X-Ray diffraction method. After the deposition process, the micro-hardness of the coatings was measured using a Vickers hardness tester. The structure and morphology of the obtained coatings were investigated. |
| Databáze: | OpenAIRE |
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