Influence of grain size on the mechanism of fracture of the aluminum alloy V95

Influence of grain size on the mechanism of fracture of the aluminum alloy V95

Mechanical behavior and mechanisms of fracture of the ultrafine-crystalline (UFC) and the coarse-crystalline (CC) aluminum alloy V95 (Al-6.0 Zn-2.3 Mg-2.0 Cu-0.4 Mn (wt %)) manufactured via using severe plastic deformation, namely, by dynamic equal-channel angular pressing (DCAP), have been studied....

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physics of metals and metallography 2012-07, Vol.113 (7), p.726-731
Hauptverfasser: Petrova, A. N., Brodova, I. G., Shirinkina, I. G., Lyapunova, E. A., Naimark, O. B.
Format: Artikel
Sprache:eng
Schlagworte:
Alloys
Aluminum base alloys
Brittle fracture
Chemistry and Materials Science
Comparative analysis
Ductile brittle transition
Equal channel angular pressing
Fracture mechanics
Magnesium
Manganese
Materials Science
Mechanical properties
Metallic Materials
Metallography
Plastic deformation
Specialty metals industry
Strength and Plasticity
Zinc compounds
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Mechanical behavior and mechanisms of fracture of the ultrafine-crystalline (UFC) and the coarse-crystalline (CC) aluminum alloy V95 (Al-6.0 Zn-2.3 Mg-2.0 Cu-0.4 Mn (wt %)) manufactured via using severe plastic deformation, namely, by dynamic equal-channel angular pressing (DCAP), have been studied. It has been demonstrated that the UFC material exhibits improved mechanical properties in comparison with the CC analog. A correlation analysis of fracture surfaces and the determination of the Hurst exponent have made it possible to perform a comparative estimation of the uniformity of the fracture structure and of the fractions of ductile and brittle fractures in the samples with the structure-scale characteristics different in value.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X12070101