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High densification and anti-corrosion of graphene-coated aluminum coating deposited on AZ31B magnesium by low-pressure cold spray

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2020, 30(5), pp.581-584
  • DOI : 10.1007/s42823-020-00128-y
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : September 16, 2019
  • Accepted : February 11, 2020
  • Published : October 1, 2020

Zhang Liuyan 1 Wang Xiujin 2 Wu Huishu 2 Mai Yongjin 2 Liu Cansen 2 Jie Xiaohua 2

1Guangdong University of Technology
2Guangdong University of Technology

Accredited

ABSTRACT

In this paper, graphene-coated Al powders prepared by in situ reduction method were directly used for cold spraying, obtain�ing a graphene-reinforced Al matrix composite coating with more compact structure and better performance. Cross-sectional analysis revealed that compared with the pure Al powders, the graphene-coated Al powders were more severely deformed, and the resulting coating was denser and its porosity was reduced by over 80%. The hardness of the graphene-coated Al coating was increased by 40%, and its brine immersion time was prolonged by nearly three times. However, the graphene increases the pitting sensitivity of the Al coating; so, the enhanced corrosion resistance of the graphene-coated Al coating is mainly attributed to the improvement of its structure densifcation.

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Scopus Citation Counts (5) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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