Enhancement of corrosion resistance of high nickel austenitic ductile iron by laser surface treatment

D. W. Zeng, Kam Chuen Yung, C. S. Xie

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Laser surface treatment was used to enhance the corrosion resistance of a high nickel austenitic ductile iron in 0.1% hydrochloric acid solution. After laser treatment, the corrosion potential of the high nickel austenitic ductile iron increased to a more noble level and the corrosion current considerably decreased. This is believed due to a refinement of the coarse ledeburite eutectic at or near the austenitic grain boundary and elimination of the graphite spheroids in laser modified layer.
Original languageEnglish
Pages (from-to)133-141
Number of pages9
JournalLasers in Engineering
Volume11
Issue number2
Publication statusPublished - 1 Dec 2001

Keywords

  • Corrosion resistance
  • High nickel austenitic ductile iron
  • Laser surface treatment

ASJC Scopus subject areas

  • Engineering(all)

Cite this