Microstructure of the Advanced Titanium Alloy VT8M-1 Subjected to Rotary Swaging.

ABSTRACT: In this study, the microstructural behavior of the advanced Ti-5.7Al-3.8Mo-1.2Zr-1.3Sn-0.15Si (VT8M-1) alloy during rotary swaging (RS) was investigated. VT8M-1 has increased heat resistance and is considered a replacement for the Ti-6Al-4V alloy. It was shown that, during RS, the evolution of the primary a phase is characterized by the formation of predominantly low-angle boundaries according to the mechanism of continuous dynamic recrystallization. The density of low-angle boundaries increases three times: from 0.38 µm^-1 to 1.21 µm^-1 after RS. The process of spheroidization of the lamellar (a + b) component is incomplete. The average size of globular a and b particles was 0.3 μm (TEM). It is shown that the microstructures after RS (ε = 1.56) and equal-channel angula

SUBMITTER: Dyakonov GS 

PROVIDER: S-EPMC10650628 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature