Influence of Nb on microstructure and mechanical properties of Ti-Sn ultrafine eutectic alloy

In this study, A series of the high strength (T 82 Sn 18 ) 100-x Nb x (x=0, 1, 3, 5, and 9 at%) ultrafine eutectic alloys with large plasticity are developed by suction casting method. The Ti 82 Sn 18 binary eutectic alloy consists of a mixture of a hcp Ti 3 Sn and a α -Ti phases having the plate-li...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Metals and materials international 2017, 23(1), , pp.20-25
Hauptverfasser: Kim, Young Seok, Park, Hae Jin, Kim, Jeong Tae, Hong, Sung Hwan, Park, Gyu Hyeon, Park, Jin Man, Suh, Jin Yoo, Kim, Ki Buem
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:In this study, A series of the high strength (T 82 Sn 18 ) 100-x Nb x (x=0, 1, 3, 5, and 9 at%) ultrafine eutectic alloys with large plasticity are developed by suction casting method. The Ti 82 Sn 18 binary eutectic alloy consists of a mixture of a hcp Ti 3 Sn and a α -Ti phases having the plate-like lamellar type duplex structure with micro scaled eutectic colony. From the (T 82 Sn 18 ) 97 Nb 3 , the alloy display structural heterogeneous distribution of ultrafine-scaled phases composed of β -Ti(Nb) solid solution surrounded by alternating plate-like shaped Ti 3 Sn and α -Ti phases. With increasing Nb content, the volume fraction of β -Ti is continuously increased, which induced improving mechanical properties both strength and plasticity. Especially, (Ti 82 Sn 18 ) 91 Nb 9 alloy has the outstanding combination of the high strength ( σ y ≈1.1 GPa) and large plasticity ( ε p ≈36%) at room temperature.
ISSN:1598-9623
2005-4149
DOI:10.1007/s12540-017-6263-2