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Metallurgical and Materials Transactions A
Erschienen in: Metallurgical and Materials Transactions A 4/2009

01.04.2009

On the Ductility of Cast Al-7 Pct Si-Mg Alloys

verfasst von: Murat Tiryakioğlu, John Campbell, Nikolaos D. Alexopoulos

Erschienen in: Metallurgical and Materials Transactions A | Ausgabe 4/2009

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Abstract

The yield strength–elongation relationship in cast Al-7 pct Si-Mg castings has been investigated by analyzing 18 datasets from the literature on premium quality castings. The data representing the elongation for a given yield strength have been found to fall within an envelope, the top limit of which represents the ductility potential of Al-7 pct Si-Mg alloy castings. Analysis of maximum elongation data indicated that secondary arm spacing has no effect on elongation. It has also been determined that the quality index of Drouzy et al. does not provide a particularly accurate representation of the trends in maximum ductility data. A new quality index based on those proposed previously by Cáceres and Din et al. is proposed. Moreover, using the fracture toughness equation by Hahn and Rosenfield, intrinsic plane strain fracture toughness and intrinsic elongation values have been found to be correlated, indicating the internal consistency of the approach taken in this study. The implications of these results are discussed in the article.
Vorheriger Artikel X-Ray Microtomographic Characterization of Porosity in Aluminum Alloy A356

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Metadaten
Titel
On the Ductility of Cast Al-7 Pct Si-Mg Alloys
verfasst von
Murat Tiryakioğlu
John Campbell
Nikolaos D. Alexopoulos
Publikationsdatum
01.04.2009
Verlag
Springer US
Erschienen in
Metallurgical and Materials Transactions A / Ausgabe 4/2009
Print ISSN: 1073-5623
Elektronische ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-008-9762-4

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