Study of the Surface Nanocrystallization Induced by the Esonix Ultrasonic Impact Treatment on the Near-Surface of 2024-T351 Aluminum Alloy

Study of the Surface Nanocrystallization Induced by the Esonix Ultrasonic Impact Treatment on the Near-Surface of 2024-T351 Aluminum Alloy

A nanocrystalline surface layer of Al alloy induced by the Esonix Ultrasonic Impact Treatment process was studied by advanced electron microscopes. The results revealed that the process can effectively refine the surface coarse grains into equiaxed nanocrystalline grains (grain size: 8.0-10.0 nm) an...

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Veröffentlicht in:Journal of materials engineering and performance 2006-06, Vol.15 (3), p.355-364
Hauptverfasser: An, X., Rodopoulos, C.A., Statnikov, E.S., Vitazev, V.N., Korolkov, O.V.
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum base alloys
Elongation
Grain size
Grains
Microorganisms
Nanocomposites
Nanocrystals
Nanostructure
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Zusammenfassung:A nanocrystalline surface layer of Al alloy induced by the Esonix Ultrasonic Impact Treatment process was studied by advanced electron microscopes. The results revealed that the process can effectively refine the surface coarse grains into equiaxed nanocrystalline grains (grain size: 8.0-10.0 nm) and elongated microbands (15-20 nm wide). The surface affected zone was measured to be approximately 10 µm. The microstructural features include nanograins, microbands, high-density dislocation, and twining structure.[PUBLICATION ABSTRACT]
ISSN:1059-9495
1544-1024
DOI:10.1361/105994906X108693