Microstructure and Texture Evolution of Mg–Gd–Y–Zn–Zr Alloy by Compression–Torsion Deformation

Mg&#8722;13Gd&#8722;4Y&#8722;2Zn&#8722;0.5Zr alloy was subjected to compression&#8722;torsion deformation at 450 &#176;C with a strain rate of 0.001&#8722;0.5 s<sup>&#8722;1</sup> using a Gleeble 3500 torsion unit. The effects of compression&#8722;tors...

Full description

Bibliographic Details
Main Authors: Ping Xu, Jianmin Yu, Zhimin Zhang
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/12/17/2773
Description
Summary:Mg&#8722;13Gd&#8722;4Y&#8722;2Zn&#8722;0.5Zr alloy was subjected to compression&#8722;torsion deformation at 450 &#176;C with a strain rate of 0.001&#8722;0.5 s<sup>&#8722;1</sup> using a Gleeble 3500 torsion unit. The effects of compression&#8722;torsion deformation on the microstructure and texture were studied, and the results showed that with the decrease of strain rate, the texture strength decreased, the number of dynamic precipitated particles increased, the degree of recrystallization increased, and the dynamic recrystallization mechanism changed from a continuous dynamic recrystallization mechanism to a continuous and discontinuous dynamic recrystallization mechanism. Along the direction of increasing radius, the degree of dynamic recrystallized grain (DRX) increased, the number of dynamic precipitated particles increased, and the texture strength slightly increased.
ISSN:1996-1944