Title:
METHOD FOR PREPARING ALUMINUM ALLOY SUPER-HYDROPHOBIC SURFACE BY FLAT-TOP LASER PEENING
Document Type and Number:
WIPO Patent Application WO/2023/236314
Kind Code:
A1
Abstract:
A method for preparing an aluminum alloy super-hydrophobic surface by flat-top laser peening. The method comprises the following steps: pretreating an aluminum alloy surface; evenly coating the pretreated aluminum alloy surface with a nanoscale carbon powder layer; by using square light spot flat-top nanosecond pulse laser and using the carbon powder layer as an absorption layer, performing non-constraint-layer peening treatment on the aluminum alloy surface, and enabling a light beam to be always kept perpendicular to the aluminum alloy surface; and removing residual carbon powder after peening, reducing the surface energy of the material by means of low-temperature heat treatment, and obtaining a super-hydrophobic aluminum alloy surface having a micro-nano multilevel structure.
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Inventors:
ZHOU JIANZHONG (CN)
GOU YANQIANG (CN)
LI LI (CN)
PU HONGXU (CN)
CHEN SONGLING (CN)
MENG XIANKAI (CN)
HUANG SHU (CN)
GOU YANQIANG (CN)
LI LI (CN)
PU HONGXU (CN)
CHEN SONGLING (CN)
MENG XIANKAI (CN)
HUANG SHU (CN)
Application Number:
PCT/CN2022/106171
Publication Date:
December 14, 2023
Filing Date:
July 18, 2022
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
B23K26/352; B23K26/14; B23K26/70
Foreign References:
CN113967796A | 2022-01-25 | |||
CN114406475A | 2022-04-29 | |||
CN111468831A | 2020-07-31 | |||
CN106119467A | 2016-11-16 | |||
CN105039652A | 2015-11-11 | |||
CN112375899A | 2021-02-19 | |||
CN109880998A | 2019-06-14 | |||
CN104947116A | 2015-09-30 | |||
JP2007169753A | 2007-07-05 |
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
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