A new probabilistic control volume scheme to interpret specimen size effect on fatigue life of additively manufactured titanium alloys

Zhi Qiang Tao, Zibiao Wang, Xiangnan Pan, Tianxiong Su, Xu Long, Bowen Liu, Qingxiao Tang, Xuechong Ren, Chengqi Sun, Guian Qian, Youshi Hong

科研成果: 期刊稿件文章同行评审

9 引用 (Scopus)

摘要

The effect of specimen size on the fatigue performance of additively manufactured (AMed) Ti-6Al-4V is investigated in this paper. The fatigue tests of Ti-6Al-4V specimens made by laser powder bed fusion were conducted via ultrasonic axial cycling up to very-high-cycle regime with stress ratio R = –1. The S-N data of five group specimens show an evident size effect, that is, with the increase of specimen size, the fatigue life or fatigue strength decreasing gradually. A new probabilistic control volume scheme is developed to evaluate the fatigue life of large sized specimens by the tested data of small sized specimens. The applicability of the proposed model is validated by the present data and those of our previous investigation. Moreover, a general form of probabilistic control volume model is derived to show the original and present models are the special cases for conventional cast and AMed alloys.

源语言英语
文章编号108262
期刊International Journal of Fatigue
183
DOI
出版状态已出版 - 6月 2024

指纹

探究 'A new probabilistic control volume scheme to interpret specimen size effect on fatigue life of additively manufactured titanium alloys' 的科研主题。它们共同构成独一无二的指纹。

引用此