文献类型：期刊文献

英文题名：Study on the fatigue performance and Residual Stress of subsurface fluid flow of 2519a aluminum alloy based on water jet peening

作者：Zhang, Ping[1,2];Gao, Yeran[1];Yue, Xiujie[2,3];Sun, Yajie[1];Zhou, Hanping[1];Zhang, Jinlong[1]

机构：[1]Guangdong Ocean Univ, Coll Mech & Power Engn, Zhanjiang, Peoples R China;[2]Qingdao Huanghai Univ, Coll Intelligent Mfg, Qingdao 266520, Peoples R China;[3]Qingdao Univ Technol, Coll Intelligent Mfg, Qingdao 266520, Peoples R China

年份：2024

卷号：230

外文期刊名：VACUUM

收录：SCI-EXPANDED(收录号：WOS:001324368600001)、、EI(收录号：20243917086902)、Scopus(收录号：2-s2.0-85204425070)、WOS

基金：This research received funding support from multiple sources, including the National Natural Science Foundation of China under grant numbers 51705270 and 51575289, the Natural Science Foundation of Guangdong Province, grant number 2023A1515030171, the Science and Technology Project of Zhanjiang City, Guangdong Province, grant number 2022A01004, the Natural Science Foundation of Shandong Province, grant number ZR2016EEP03, the Applied Basic Research Program of Qingdao City, grant number 19-6-2-69-cg, and the Shandong Qingchuang Science and Technology Project, grant number 2019KJB022.

语种：英文

外文关键词：Water jet enhancement; Fatigue life; Residual stress; 2519 aluminum alloy; Surface integrity

外文摘要：In this study, the influence mechanism of water jet (WJ) strengthening on the surface integrity and fatigue properties of 2519 aluminum alloy was investigated by using finite element software Abaqus 2023 and fatigue analysis software Fe-safe. The effects of jet velocity and transverse velocity on the development of surface roughness and residual stress in different strengthening stages were studied, and the fatigue properties of WJ strengthened samples were analyzed by Fe-safe fatigue software. Finally, the fatigue life and fracture morphology of WJ strengthened specimens were analyzed by fatigue test, and the accuracy of finite element analysis was verified. Results indicate that surface roughness post-WJ enhancement displays a "W" shaped distribution, positively correlated with jet velocity. Conversely, increased roughness negatively correlates with higher traverse speeds, with optimal values recorded between 400 and 600 mm/min at WJ-290 mm/s, ranging from 1.10322 to 1.41167 mu m. Additionally, the study reveals that maximum residual compressive stress during the WJ-Ip phase correlates positively with jet velocity, peaking at 302 MPa for WJ-290 mm/s. The research also notes that while higher jet velocities enhance residual compressive stress, they simultaneously elevate surface roughness, potentially introducing damage and increasing the variability of stress magnitudes. The study underscores the necessity of meticulously calibrating WJ parameters to enhance surface quality effectively while minimizing adverse effects. This balance is critical to optimizing the treatment process and achieving desired material properties.