Novel Anisotropic Ductility of a High Strength Annealed Ti-20Zr-6.5Al-4V Alloy

Materials

Xing Zhang¹  Bing Zhang¹  Riping Liu¹  Qin Jing¹  Yuanzhi Jia¹  Mingzhen Ma¹  Xinyu Zhang¹ 

[1] State key laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China;

关键词: Ti-20Zr-6.5Al-4V alloy;    uniaxial tensile;    similarly orientated α laths;    crack;    ductility anisotropy;   

DOI  :  10.3390/ma11040529

来源: DOAJ

【 摘 要 】

In this work, we investigate the mechanical properties of an annealed high strength Ti-20Zr-6.5Al-4V alloy in uniaxial tensile tests in different directions. The results show that the alloy exhibits obvious anisotropic ductility in different directions, while the tensile strength of the alloy remains almost unchanged. This phenomenon is closely related to α laths with similar orientations along the prior-β grain boundaries. These α laths significantly affect the initiation and propagation of cracks when the alloy reaches its yield limit, thereby affecting the ductility of the alloy, such that it exhibits anisotropic ductility.

【 授权许可】

Unknown