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Digitale Medien

Effect of ribbon-wheel contact on the microstructure of melt-spun Al-Cu eutectic alloy ribbons (1985)

Neumann, W. ; Leonhardt, M. ; Löser, W. ; [weitere]

Springer

Journal of materials science 20 (1985), S. 3141-3149

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Details

ISSN: 1573-4803

Quelle: Springer Online Journal Archives 1860-2000

Thema: Maschinenbau

Notizen: Abstract The microstructure of melt-spun Al-17.3 at% Cu eutectic alloy ribbons with different thicknesses have been revealed by means of electron microscopy and X-ray techniques. Thick ribbons (〉20μm) consist of finely-dispersed α-Al and Al2Cu equilibrium phases showing lamellar or irregular morphology. In thin ribbons a considerable fraction of supersaturated α-Al solid solution and the metastable Al4Cu9 phase have been detected. The experimental facts on the identity of the phases, their morphology and particle size for given processing conditions are discussed within the framework of a heat flow model including the solidification process as well as post-solidification transformations. The microstructural features are considered to be determined by local and time variations of the ribbon-wheel contact.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00545179

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