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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.

Inventors:
ZHOU JIANZHONG (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:
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Assignee:
UNIV JIANGSU (CN)
International Classes:
B23K26/352; B23K26/14; B23K26/70
Foreign References:
CN113967796A2022-01-25
CN114406475A2022-04-29
CN111468831A2020-07-31
CN106119467A2016-11-16
CN105039652A2015-11-11
CN112375899A2021-02-19
CN109880998A2019-06-14
CN104947116A2015-09-30
JP2007169753A2007-07-05
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
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