文献类型：期刊文献

英文题名：Experimental investigation of ultrasonic surface rolling process on Ti17 titanium alloy to improve vibration fatigue limit at elevated temperature

作者：Zhang, Longhan[1];Cheng, Huayi[1];Wang, Jiawei[1];Zhang, Chengcheng[2];Liu, Changli[1];Liu, Shuang[1];Zhu, Lin[1]

机构：[1]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China;[2]AECC Commercial Aircraft Engine Co Ltd, Shanghai Engn Res Ctr Commercial Aircraft Engine, Shanghai 201108, Peoples R China

年份：2025

卷号：39

期号：8

起止页码：4481

外文期刊名：JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20253218936235);WOS:【SCI-EXPANDED(收录号:WOS:001543425200001)】；

基金：This work was financially supported by the National Key Research and Development Project (Grant Nos. 2022YFB46000 19), and the Innovation Program Phase II of AECC Commercial Aircraft Engine Co. Ltd (Grant No. HT-3RJC1053-2020).

语种：英文

外文关键词：High-cycle vibration fatigue property; Surface integrity; Ti17 titanium alloy; Ultrasonic surface rolling processing

摘要：The ultrasonic surface rolling process (USRP) is an advanced surface treatment technology that significantly enhancing surface integrity and mechanical properties. The purpose of this paper is to examine the influence of USRP treatment on the high cycle vibration fatigue (HCVF) behavior of Ti17 titanium alloy blade-like specimens at elevated temperatures. At 450 degrees C, USRP treatment increases the fatigue strength of Ti17 alloy from 472.15 MPa to 600 MPa, as evidenced by the experimental results. Furthermore, the surface roughness is reduced by 41.3 %, and the maximum surface microhardness and residual stress increase by 20 % and 8.36 times, respectively, with a modified layer depth extending up to 400 mu m. Fatigue crack development and propagation can be inhibited by a greater compressive residual stress field and excellent surface quality. This work offers information for additional study and practical applications of USRP in improving the fatigue resistance of titanium alloy components in aerospace engineering.