文献类型：期刊文献

英文题名：Improving fatigue performance of thin-walled components via synchronous double-sided ultrasonic surface rolling process

作者：Zhang, Kaiming[1];Wang, Ji[2];Cheng, Huayi[1];Yao, Shulei[1];Liu, Changli[1];Zhang, Chengcheng[3];Yu, Xueran[1];Liu, Shuang[1];Zhang, Xiancheng[1];Tu, Shantung[1]

机构：[1]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China;[2]Nanjing Univ Technol, Inst Reliabil Ctr Mfg, Nanjing 211816, Peoples R China;[3]AECC Commercial Aircraft Engine Co LTD, Shanghai Engn Res Ctr Commercial Aircraft Engine, Shanghai 201108, Peoples R China

年份：2025

卷号：338

外文期刊名：JOURNAL OF MATERIALS PROCESSING TECHNOLOGY

收录：;EI(收录号：20250917958756);WOS:【SCI-EXPANDED(收录号:WOS:001435995400001)】；

基金：This work was supported financially by the National Key Research and Development Project (Grant No. 2022YFB4602102), the National Natural Science Foundation of China (Grant No. 52405154, Grant No. 51975214), the Innovation Program Phase II of AECC Commercial Aircraft Engine Co. Ltd (Grant No. HT-3RJC1053-2020), and the Shanghai Municipal Science and Technology Commission Sailing Plan (Grant No. 23YF1408300).

语种：英文

外文关键词：Ultrasonic surface rolling process; Thin-walled; Synchronous; Double-sided; Vibration fatigue

摘要：To enhance the vibration fatigue resistance of thin-walled components, surface strengthening techniques have gained significant attention in the aerospace industry. This study introduces the synchronous double-sided ultrasonic surface rolling process (SDUSRP) as a promising method for improving the fatigue resistance of thinwalled components. Experiments were conducted on specially designed specimens simulating the structure of aero-engine blade edges. Two different SDUSRP parameters, primarily differing in the ultrasonic amplitude, were applied to create distinct surface strengthening effects on the specimens. Compared to untreated specimens, those treated with SDUSRP exhibited a fatigue life extension of approximately 10-100 times in different fatigue loads. The substantial improvement in fatigue performance is attributed to the stable fine-grain layer, high amplitude compressive residual stress and their cyclic stability. Additionally, higher ultrasonic amplitude enhances grain refinement through dislocation proliferation and the formation of dislocation slip bands, leading to the fragmentation and separation of grains. The SDUSRP technique demonstrated in this study shows great potential for tailoring and adjusting residual stress and microstructure in thin-walled structures, offering a valuable complement to existing anti-fatigue manufacturing methods for such components.