文献类型：期刊文献

英文题名：Water jet impact damage mechanism and dynamic penetration energy absorption of 2A12 aluminum alloy

作者：Zhang, Ping[1,2];Liu, Zehua[1];Yue, Xiujie[2];Wang, Penghao[2,3];Zhai, Yanchun[2]

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]Yantai Univ, Sch Electromech & Automot Engn, Yantai 264000, Peoples R China

年份：2022

卷号：206

外文期刊名：VACUUM

收录：SCI-EXPANDED(收录号：WOS:000877150700002)、、EI(收录号：20224012834502)、Scopus(收录号：2-s2.0-85139057453)、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 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：WCI; Residual stress; Dynamic penetration; Energy absorption property

外文摘要：This study aims to explore the waterjet cavitation impact (WCI) mechanism of 2A12 aluminum alloy and its dynamic penetration energy absorption after WCI treatment. The effects of WCI process parameters on the re-sidual stress, surface quality, and microstructure of 2A12 aluminum alloy are investigated through experiment and simulation and, a dynamic penetration model of 2A12 aluminum alloy is established with ABAQUS software and finite element simulation is performed. The results show that WCI can greatly enhance the residual compressive stress of the target. Comprehensive evaluation of surface residual stress, surface quality, and plastic deformation layer reveals that a combination of small jet angle with large jet pressure, or large jet angle with medium jet pressure, delivers the best strengthening effect; the residual compressive stress and plastic defor-mation layer introduced by WCI can effectively increase the defensible performance of 2A12 aluminum alloy, making the projectile residual velocity far lower than before WCI treatment.