文献类型：期刊文献

英文题名：The influence mechanism of water jet peening on the fatigue crack growth behavior of 7075 aluminum alloy

作者：Zhang, Ping[1,2];Gao, Yeran[1];Zhang, Jinlong[1];Yue, Xiujie[2,3];Zhou, Hanping[1];Sun, Yajie[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：187

外文期刊名：INTERNATIONAL JOURNAL OF FATIGUE

收录：SCI-EXPANDED(收录号：WOS:001255648700001)、、EI(收录号：20242516271941)、Scopus(收录号：2-s2.0-85196019721)、WOS

基金：The work was supported by the National Natural Science Foundation of China (51705270) , the National Natural Science Foundation of China (No.51575289) ,the Natural Science Foundation of Guangdong Province (No.2023A1515030171) , Science and Technology Project of Zhanjiang City, Guangdong Province (No.2022A01004) , the Natural Science Foundation of Shandong Province (No.ZR2016EEP03) ,the Applied Basic Research Program of Qingdao city (No.19-6-2-69-cg) and Shandong Qingchuang Science and Technology Project (No.2019KJB022) , Research start -up fund of Guangdong Ocean University. Conflict of Interest: The authors declare that they have no conflict of interest. Availability of data and material (data transparency) :On behalf of all authors, I confirm that all data are true and reliable. Code availability (software application or custom code) :I speak for all authors: the software is reliable. Ethics approval (include appropriate approvals or waivers) :I speak for all authors: there are no ethical issues with manuscripts. Consent to participate (include appropriate statements) : All the authors of the manuscript agreed to participate. Consent for publication (include appropriate statements) : All the authors of the manuscript agreed to publish this paper in International Journal of Fatigue . Authors ' contributions: The design of the overall scheme was completed by Zhang Ping.The design of the simulation scheme was completed by Zhang Jinlong and Sun Yajie. Data extraction was completed by Gao Yeran and Yue Xiujie. Language modification was completed by Zhou Hanping.

语种：英文

外文关键词：Water Jet Peening; Fatigue Crack Propagation; 7075 Aluminum Alloy; Residual Stress

外文摘要：This study aims to investigate the impact of water jet (WJ) peening on the fatigue crack propagation (FCP) behavior of 7075 aluminum alloy, using the finite element software abaqus to establish WJ peening and FCP models. The effects of WJ peening on surface roughness and residual stress of the 7075 aluminum alloy were examined, as well as the influence of WJ peening on the FCP of the specimens. The results indicate that the surface roughness of the specimens after WJ peening is positively correlated with the jet velocity, with the surface roughness within the sampling areas after WJ peening at 150 - 200 mm/s being approximately 0.72, 0.98, and 1.47 mu m, respectively. The surface residual compressive stress and the maximum residual compressive stress distribution of the specimens after WJ peening also show positive correlations with the jet velocity, with the maximum residual compressive stress occurring at a depth of 117 mu m after WJ peening; the maximum residual compressive stress of the specimen peened at WJ-150 mm/s is approximately 169.9 MPa, and the induced maximum residual compressive stress increases by 59.6 and 172.3 MPa as the WJ velocity increases, reaching 229.5 and 342.2 MPa, respectively. When the crack length approaches the WJ area, the increment significantly decreases, and the crack propagation rate is lower within the WJ peening area; as the crack further propagates, the rate of propagation gradually increases. The number of fatigue cycles of the specimens after WJ peening shows a positive correlation with the jet velocity, with the fatigue life cycles after WJ peening at 150 - 200 mm/ s being 10081, 13277, and 20,015 cycles, respectively.