Dynamic shear deformation and failure of Ti-6Al-4V and Ti-5Al-5Mo-5V-1Cr-1Fe alloys

Chun Ran*, Pengwan Chen

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

21 引用 (Scopus)

摘要

To study the dynamic shear deformation and failure properties of Ti-6Al-4V (Ti-64) alloy and Ti-5Al-5Mo-5V-1Cr-1Fe (Ti-55511) alloy, a series of forced shear tests on flat hat shaped (FHS) specimens for the two investigated materials was performed using a split Hopkinson pressure bar setup. The evolution of shear deformation was monitored by an ultra-high-speed camera (Kirana-05M). Localized shear band is induced in the two investigated materials under forced shear tests. Our results indicate that severe strain localization (adiabatic shear) is accompanied by a loss in the load carrying capacity, i.e., by a sudden drop in loading. Three distinct stages can be identified using a digital image correlation technique for accurate shear strain measurement. The microstructural analysis reveals that the dynamic failure mechanisms for Ti-64 and Ti-55511 alloys within the shear band are of a cohesive and adhesive nature, respectively.

源语言英语
文章编号76
期刊Materials
11
1
DOI
出版状态已出版 - 5 1月 2018

指纹

探究 'Dynamic shear deformation and failure of Ti-6Al-4V and Ti-5Al-5Mo-5V-1Cr-1Fe alloys' 的科研主题。它们共同构成独一无二的指纹。

引用此

Ran, C., & Chen, P. (2018). Dynamic shear deformation and failure of Ti-6Al-4V and Ti-5Al-5Mo-5V-1Cr-1Fe alloys. Materials, 11(1), 文章 76. https://doi.org/10.3390/ma11010076