公开(公告)号：US11753694B1

公开(公告)日：2023-09-12

申请号：US18023395

申请日：2022-06-06

申请人： JIANGSU UNIVERSITY

发明人： Jianzhong Zhou ,  Yanqiang Gou ,  Li Li ,  Yu Zhang ,  Xiankai Meng ,  Shu Huang ,  Gaoqiang Jiang ,  Pengfei Li ,  Xv Feng

IPC分类号： C21D10/00 ,  C22C21/00

CPC分类号： C21D10/005 ,  C22C21/00

摘要： A pulse current-assisted laser peen forming and hydrophobic surface preparing method for an aluminum alloy includes the following steps: placing a pretreated aluminum alloy onto a shock platform, where electrodes are respectively provided at two ends of the aluminum alloy, and flowing silicone oil covers a surface of the aluminum alloy; determining a laser energy; applying a high-frequency pulse current to the surface of the aluminum alloy through the electrodes, where a shot peening laser generates a laser beam according to the laser energy to shock the surface of the aluminum alloy, and under an action of an electrical pulse and laser shock, the aluminum alloy shows a bent arc-shaped surface, with a shock surface forming a porous micro-nano multi-stage surface; and performing chemical modification on the shock surface of the aluminum alloy to reduce a surface energy of the material, thereby obtaining a super-hydrophobic arc-shaped aluminum alloy surface.

公开(公告)号：US12128501B2

公开(公告)日：2024-10-29

申请号：US18286758

申请日：2022-07-08

申请人： Jiangsu University

发明人： Jianzhong Zhou ,  Lei Huang ,  Yanqiang Gou ,  Xiankai Meng ,  Shu Huang ,  Pengfei Li ,  Li Li ,  Gaoqiang Jiang ,  Xu Feng

IPC分类号： B23K26/356 ,  C21D10/00 ,  C22C21/00 ,  C23C22/02 ,  C23C22/05 ,  B23K101/34 ,  B23K103/10

CPC分类号： B23K26/356 ,  C21D10/005 ,  C22C21/00 ,  C23C22/02 ,  C23C22/05 ,  B23K2101/35 ,  B23K2103/10 ,  C23C2222/20

摘要： The present disclosure provides a method for preparing a superhydrophobic surface of an aluminum alloy through laser peening, including the following steps: coating a surface of the aluminum alloy as an absorption layer with an organic component-containing confinement layer to obtain a coated aluminum alloy, where the organic component-containing confinement layer is a mixed organic solution including 5 mL to 10 mL of perfluorooctyltriethoxysilane (FOTS), 100 mL to 200 mL of absolute ethanol, and 30 mL to 50 mL of distilled water; and subjecting a surface of the coated aluminum alloy to the laser peening to form the superhydrophobic surface.