Mechanism of {332}<113> Twinning Formation in Cold-Rolled Ti-Nb-Ta-Zr-O Alloy

Metals

Leng Chen¹  Jinhui Sun¹ 

[1] School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;

关键词: Ti-35Nb-2Ta-3Zr-O (wt %) alloy;    mechanism of {332}<;    113>;    twinning formation;    deformation energy;   

DOI  :  10.3390/met8121075

来源: DOAJ

【 摘 要 】

In this study, the mechanism of {332}<113> twinning formation in cold-rolled Ti-35Nb-2Ta-3Zr-O (wt %) alloy was investigated based on the Taylor-Bishop-Hill theory. The experimental data of crystal orientation in the rolling bite zone was obtained via electron back-scattered diffraction (EBSD). The deformation energy of {332}<113> twinning in the propagation stage was calculated using data from EBSD in terms of the Hall-Petch-type relation. The calculation results revealed that the mechanism of {332}<113> twinning formation in β-type Ti-35Nb-2Ta-3Zr-O (wt %) alloy contained two valid models, namely the shear-shuffle model and α″-assisted twinning model. This can help to clarify the mechanism of {332}<113> twinning formation further.

【 授权许可】

Unknown