The Characteristic of {101¯2}<101¯1¯> Twin of Ti-10V-2Fe-3Al under Planar Wave Detonation

Tong Wang; Ping Yang; Jin Zhang; Xin-Fu Gu

doi:10.3390/ma16206739

The Characteristic of {101¯2}<101¯1¯> Twin of Ti-10V-2Fe-3Al under Planar Wave Detonation

Materials (Basel). 2023 Oct 18;16(20):6739. doi: 10.3390/ma16206739.

Authors

Tong Wang¹, Ping Yang¹, Jin Zhang², Xin-Fu Gu¹

Affiliations

¹ School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
² Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.

Abstract

The microstructure evolution of the twin of TB6 (Ti-10V-2Fe-3Al) under planar wave detonation was studied. The initial microstructure of the alloy consists of an α and β phase. It is found that twin deformation is operated in only the α phase due to the limited slip system in this phase. α grains are mainly rotated from {101¯0} to {0002} during the deformation due to the {101¯2}<101¯1¯> twin. Twin variant selection is found in this study, and the orientation of all {101¯2} twins is oriented at {0002} in different α grains with different deformation degrees. The twin variant selection is well explained based on the strain relaxation along the loading axis and the Schmid factor for twinning shear.

Keywords: EBSD; Ti alloy; planar wave detonation; twin.

Grants and funding

This research was funded by Fundamental Research Funds for the Central Universities, grant number FRF-TP-20-007A3.