Microstructure and Performance of a Laser Clad Co-Based Alloy on 2Cr13 Stainless Steel

Song Zhang, Chunhua Zhang, Hau Chung Man, Weitao Wu, Maocai Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

2Cr13 stainless steel was surface 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. The experimental results indicate that the high temperature corrosion behaviour and wear resistant property of the clad layer are 3 and 3.5 times better than those of the parent metal. Under the high temperature molten lead sulphate salt corrosion condition, the clad layer spalls off which is caused by intergrannular corrosion in the clad layer. The fine dendritic structure and the Co-based alloy oxides help to retard the penetration rate of the sulphur ion, which induces the intergrannular corrosion.
Original languageEnglish
Pages (from-to)222-223
Number of pages2
JournalXiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume30
Issue number3
Publication statusPublished - 1 Jun 2001

Keywords

  • Co-based alloy
  • Laser cladding
  • Sulphate salt hot corrosion
  • Wear

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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