Investigation of the Role of Intermetallic Phases in Microstructure of UFG Titanium VT8M-1 Alloy

Autor: Andrey Stotskiy, G.S. Dyakonov, Iuliia Mikhailovna Modina, Tatyana Vitalyevna Yakovleva, Irina P. Semenova
Rok vydání: 2021
Předmět:
Zdroj: Materials Science Forum. 1016:1659-1663
ISSN: 1662-9752
DOI: 10.4028/www.scientific.net/msf.1016.1659
Popis: The paper studies the microstructure of two-phase ultrafine-grained titanium VT8M-1 alloy (Ti-5.7Al-3.8Mo-1.2Zr-1.3Sn), which was obtained by rotary swaging (RS). Parameters of the microstructure and the change of the phase elemental / chemical composition were investigated by scanning electron microscopy and transmission electronic microscopy. It was shown that the silicide particles like S2 - (Ti,Zr)6Si3 were precipitated in the process of rotary swaging. The influence of silicide precipitations on the characteristics of high temperature strength of the ultrafine-grained two-phase titanium VT8M-1 alloy was discussed in the paper. The alloy microstructure was analyzed after the creep-rupture tests in the operation temperature range 300-400oС.
Databáze: OpenAIRE