Oxygen-Interstitial Ti Polycrystal

Twinning suppressed at high strain rates

Increasing oxygen content from 0.2 to 0.4 wt% markedly suppresses {101‾2} tensile twin nucleation and growth while enhancing prismatic <a> slip, altering the high-strain-rate deformation mechanisms of titanium.

Wang, Boya · Luo, Yumeng · Ye, Wenjun · Song, Xiaoyun · Yu, Yang · Liu, Rui · Li, Yanfeng · Hui, Songxiao

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing 2025

Advantages

Both twinning and dislocation slip are significant in Ti-0.2O polycrystal

Dislocation slip predominates in Ti-0.4O polycrystal

Twin nucleation and growth markedly reduced in Ti-0.4O

Prismatic <a> slip more probable in Ti-0.4O