Microstructure Evolution of Commercial Pure Titanium During Interrupted In Situ Tensile Test - Archive ouverte HAL Access content directly
Journal Articles Metallurgical and Materials Transactions A Year : 2021

Microstructure Evolution of Commercial Pure Titanium During Interrupted In Situ Tensile Test

(1, 2) , (3) , (4, 2) , (4, 2) , (4, 2) , (4, 2)
1
2
3
4

Abstract

Microstructure evolution of commercial pure titanium is investigated by interrupted in situ electron backscatter diffraction (EBSD) measurement during tensile deformation along transverse direction at room temperature. After 24 pct elongation, the split basal texture of initial material is weakened and rotated around 90 deg along normal direction (ND). 11 22-10 12 double twin is the main reason for the change of texture. The basal poles are rotated nearly perpendicular to ND by the primary 11 22 twin and back to ND through the reorientation of 10 12 secondary twin. Both Schmid factor criterion and displacement gradient accommodation are considered to predict the twin-induced texture evolution during TD tension. Kink bands formed by the accumulation of basal hai dislocations are also observed in the deformed grain. The activation of other slip systems can deviate the rotation axis and reduce the rotation angle of kink boundary. Besides, the kink boundary with high basal dislocation density obviously hinders the twin transmission and simultaneously can be taken as a preferential nucleation site for 11 22 twin.
Fichier principal
Vignette du fichier
article.pdf (1.32 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03863911 , version 1 (06-12-2022)

Identifiers

Cite

Qian Wang, Shiying Wang, Patrick Moll, Auriane Mandrelli, Jean-Sébastien Lecomte, et al.. Microstructure Evolution of Commercial Pure Titanium During Interrupted In Situ Tensile Test. Metallurgical and Materials Transactions A, 2021, 52, pp.2477 - 2488. ⟨10.1007/s11661-021-06237-1⟩. ⟨hal-03863911⟩
0 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More