Surface alloying of thin-walled metallic tube fragments using pulsed gas plasma flows
| Autor: | A. T. Hein, M. V. Leont’eva-Smirnova, Pavel Dzhumaev, B. A. Kalin, V. I. Pol’skii, V. L. Yakushin |
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| Rok vydání: | 2014 |
| Předmět: |
Range (particle radiation)
Materials science Morphology (linguistics) Metallurgy technology industry and agriculture Metals and Alloys chemistry.chemical_element Metal Chromium chemistry Aluminium visual_art visual_art.visual_art_medium Tube (fluid conveyance) Surface layer Composite material Layer (electronics) |
| Zdroj: | Russian Metallurgy (Metally). 2014:561-568 |
| ISSN: | 1555-6255 0036-0295 |
| DOI: | 10.1134/s0036029514070155 |
| Popis: | A technique is developed and conditions are determined for the surface liquid-phase alloying with aluminum and chromium of thin-walled tubes made of 12% Cr type steels with the use of high-temperature pulsed gas plasma flows. The surface morphology of the samples subjected to alloying is shown to depend on the type and thickness of a deposited film and the plasma treatment conditions. The optimum plasma treatment conditions are determined; as a result, alloying elements are rather uniformly distributed in a 10-μmthick near-surface layer at a preliminarily deposited film thickness of ∼0.5 μm. In this case, the average aluminum content in the surface layer changes in the range 6–18 wt % and the chromium content increases from ∼12 to ∼25–40 wt %. |
| Databáze: | OpenAIRE |
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