Effect of excimer laser surface treatment on corrosion resistance of aluminum 2009/SiCwcomposite

Tai Man Yue, S. M. Mei, Kang Cheung Chan, Hau Chung Man

Research output: Journal article publicationJournal articleAcademic researchpeer-review

12 Citations (Scopus)

Abstract

Excimer laser surface treatment was utilized to improve the corrosion resistance of an Al-2009/SiCwcomposite. After laser treatment, the corrosion potential of the composite was increased to a more noble level, and the corrosion current was greatly decreased. This is considered to be due to the reduction of SiC whiskers and Cu-bearing compounds in the laser-modified layer. Moreover, the N2-treated specimen exhibited a much greater resistance to corrosion than the air-treated specimen. This was attributed to the formation of the AlN phase in the laser-modified layer.
Original languageEnglish
Pages (from-to)274-279
Number of pages6
JournalMaterials Letters
Volume39
Issue number5
DOIs
Publication statusPublished - 1 Jan 1999

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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