Open AccessThe microstructure and properties of the alloy Ti-5Al-0.5V subjected to ECAP and ultrasonic treatment
Author(s) -
A. A. Mukhametgalina,
M. A. Murzinova,
А. А. Назаров
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/672/1/012047
Subject(s) - materials science , superplasticity , microstructure , alloy , ultrasonic sensor , elongation , pressing , metallurgy , composite material , titanium alloy , ultimate tensile strength , acoustics , physics
This work presents the results of a study of the mechanical properties of a titanium alloy Ti-5Al processed by equal channel angular pressing (ECAP) and ultrasonic treatment (UST). The UST was carried out at a frequency of 20 kHz with an amplitude of oscillating tension-compression stresses of 100 MPa. It was shown that the alloy subjected to UST exhibited low temperature superplastic properties. Its elongation exceeded a value of 300%, the coefficient m was 0.3 at a strain rate of 1.7×10 −4 1/s.