Wear resistance and hot corrosion behaviour of laser cladding Co-based alloy

Song Zhang, Chun Hua Zhang, Hau Chung Man, Wei Tao Wu, Mao Cai Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)

Abstract

2Cr13 stainless steel was cladded with Co-based alloy using a high power carbon dioxide laser. The microstructure, wear resistance and corrosion properties of the clad layer were investigated. It is found that the high temperature corrosion behavior and wearing resistant property of the clad layer are 3 and 2.5 times higher than those of the parent metal. At the corrosion condition of molten lead sulphate salt, the clad layer fails by spalling which is caused by intergrannular corrosion within the clad layer. The fine dendritic structure and the oxide help to retard the penetration of the sulphur ion that induces the intergrannular corrosion.
Original languageEnglish
Pages (from-to)838-842
Number of pages5
JournalTransactions of Nonferrous Metals Society of China (English Edition)
Volume11
Issue number6
Publication statusPublished - 1 Dec 2001
Externally publishedYes

Keywords

  • Co-based alloy
  • Hot corrosion
  • Laser cladding
  • Wear resistance

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Geotechnical Engineering and Engineering Geology
  • Metals and Alloys
  • Materials Chemistry

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