EBSD study of advanced Ti-5.7Al-3.8Mo-1.2Zr-1.3Sn alloy subjected to equal-channel angular pressing

•The lamellar component of the alloy was spheroidized after ECAP deformation.•The lamellar component was spheroidized by the boundary-splitting mechanism.•The evolution of the primary alpha phase is controlled by continuous recrystallization.•Burgers orientation relationship between the spheroidized...

Full description

Saved in:
Bibliographic Details
Published in:Materials letters 2021-09, Vol.298, p.130003, Article 130003
Main Authors: Dyakonov, G.S., Yakovleva, T.V., Stotskiy, A.G., Mironov, S.
Format: Article
Language:English
Subjects:
Electron backscatter diffraction
Electron backscatter diffraction (EBSD)
Electrons
Equal channel angular pressing
Equal-channel angular pressing (ECAP)
Materials science
Microstructure
Spheroidizing
Texture
Titanium alloys
Titanium base alloys
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•The lamellar component of the alloy was spheroidized after ECAP deformation.•The lamellar component was spheroidized by the boundary-splitting mechanism.•The evolution of the primary alpha phase is controlled by continuous recrystallization.•Burgers orientation relationship between the spheroidized α and β phases was found. In this work, electron backscatter diffraction (EBSD) was applied for microstructural characterization of the advanced Ti-5.7Al-3.8Mo-1.2Zr-1.3Sn alloy subjected to equalchannel angular pressing (ECAP). It was found that the spheroidization process induced by ECAP was governed by the conventional boundary-splitting mechanism. The nearly-Burgers orientation relationship between the spheroidized a- and b-phases was revealed. This intriguing result can be attributed to the very high cooperation in slip activity between the phases.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2021.130003