文献类型：期刊文献

英文题名：Research on the surface corrosion behavior of 7075-T6 aluminum alloy during high-speed machining and particle inclusion water jet composite reinforcement

作者：Zhang, Ping[1];Yue, Xiujie[2];Gao, Yeran[1];Wang, Shunxiang[1];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 Univ Technol, Coll Intelligent Mfg, Qingdao 266520, Peoples R China

年份：2024

卷号：219

外文期刊名：VACUUM

收录：SCI-EXPANDED(收录号：WOS:001105665100001)、、EI(收录号：20234414985248)、Scopus(收录号：2-s2.0-85175077887)、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) .

语种：英文

外文关键词：7075-T6 aluminum alloy; Composite reinforcement; Electrochemical corrosion; Surface morphology; Microstructure

外文摘要：7075 aluminum alloy is widely used in the aerospace field, and its use process is subjected to serious corrosion environment. This study aims to explore the influence mechanism of high-speed machining and shot peening water jet composite surface reinforcement on the corrosion behavior of 7075-T6 aluminum alloy. The 7075-T6 aluminum alloy was subjected to shot peening water jet (WJP) and high-speed machining combined with shot peening water jet (HSC-WJP) composite surface reinforcement treatments. The results showed that at a jet pressure of 20 MPa, a jet target distance of 7.5 mm, a nozzle moving speed of 660 mm/min, and a track spacing of 0.33 mm, the self-corrosion potential and polarization resistance were the highest, and the self-corrosion current density was the lowest, with the largest capacitance arc radius. Compared to the WJP treatment, the HSC-WJP-20MPa shifted the self-corrosion potential towards the positive direction by 0.01 V, increased the polarization resistance by 724 omega cm2, and reduced the self-corrosion current by 7.9 %. The HSC-WJP-7.5 mm reduced the self-corrosion current density by 50.02 % and increased the polarization resistance by 24.9 %. The HSC-WJP-660 mm/min decreased the self-corrosion current density by 52.1 % and increased the polarization resistance by 44.5 %.The samples subjected to HSC-WJP composite reinforcement had fewer and smaller corrosion product sizes.