Abstrakt
In this paper, results of the experimental study on improving wear resistance in sliding friction of Al-based alloy are presented. The technique used involves the formation of a metal matrix composite (MMC) in the alloy surface layer by laser dispersion of carbide powders such as WC, TiC and SiC. For WC and TiC MMC surface coatings fabricated under conditions typical for most of the technologically relevant solid-state lasers (wavelength range of 0.8–1.1 μm), the nearly inversely proportional dependence of the required laser energy density on the powder mass density is observed. Highly homogenous distribution of powder particle content (up to 40%) in the MMC surface coatings of a thickness between 0.8 and 1.6 mm obtained by multiple scanning is observed in the cross-section of specimens processed within a rather narrow parameter window. Tribological tests and comparison to untreated material reveal wear resistance increases by five- and ten-fold, observed in samples with laser-dispersed TiC and WC powders, respectively. Results indicate that substantial modification and reinforcement of the surface layer can be achieved in Al alloy in a one-step process without substrate preheating.
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Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- Licencja
- otwiera się w nowej karcie
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
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Materials
nr 13,
ISSN: 1996-1944 - Język:
- angielski
- Rok wydania:
- 2020
- Opis bibliograficzny:
- Jendrzejewski R., Łubiński J., Śliwiński G.: Wear Resistance Enhancement of Al6061 Alloy Surface Layer by Laser Dispersed Carbide Powders// Materials -Vol. 13,iss. 17 (2020), s.3683-
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/ma13173683
- Źródła finansowania:
-
- Grant nr 4884/B/T02/2010/38 Composite materials based on Al and Ti alloys produced by laser dispersing of ceramic powders
- Weryfikacja:
- Politechnika Gdańska
Powiązane datasety
- dane badawcze Ball on disk test AL(rf.)-Al2O3-r25
- dane badawcze Ball on disk test AT4_11-Al2O3-r25
- dane badawcze Ball on disk test AT3_21-Al2O3-r25
- dane badawcze Ball on disk test AW4_1-Al2O3-r15
- dane badawcze Ball on disk test AT4_4-Al2O3-r15
- dane badawcze Reinforced aluminium reference measurement R63 – earlier tests
- dane badawcze Ball on disk test AL(rf.)-Al2O3-r15
- dane badawcze Ball on disk test AW4_11-Al2O3-r25
- dane badawcze Preparation to ball on disk test Initial contact stress evaluation
- dane badawcze Reinforced aluminium reference measurement Result1 – earlier tests
wyświetlono 118 razy
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