Structure and mechanical properties of strips and shapes from ultrafine-grained aluminum alloy 1421

The structure and mechanical properties of high-strength shapes from ultrafine-grained aluminum alloys for the aircraft industry are studied. The initial material is commercial alloy 1421 in coarse-crystal state. An ultrafine-grained structure is formed in preforms 40 mm in diameter and 160 mm long...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Metal science and heat treatment 2009, Vol.51 (1-2), p.82-86
Hauptverfasser:	Islamgaliev, R. K., Yunusova, N. F., Nurislamova, G. V., Krasil’nikov, N. A., Valiev, R. Z., Ovid’ko, I. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aircraft industry Alloys Aluminum base alloys Angular pressing Characterization and Evaluation of Materials Chemistry and Materials Science Classical Mechanics Engineering Thermodynamics Heat and Mass Transfer Materials Science Mechanical properties Metallic Materials Plastic deformation Strain Strip Superplastic deformation Superplastic forming
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The structure and mechanical properties of high-strength shapes from ultrafine-grained aluminum alloys for the aircraft industry are studied. The initial material is commercial alloy 1421 in coarse-crystal state. An ultrafine-grained structure is formed in preforms 40 mm in diameter and 160 mm long by equichannel angular pressing at 370°C with degree of accumulated strain e ≥ 10. Strips with ultrafine-grained structure with a thickness of 2 mm are fabricated by rolling with e = 2.7 at 350°C. The strips are used for making shapes with Π-section under conditions of superplastic deformation.
ISSN:	0026-0673 1573-8973
DOI:	10.1007/s11041-009-9122-z