Effects of laser treatments on cavitation erosion and corrosion of AISI 440C martensitic stainless steel

K. H. Lo, F. T. Cheng, C. T. Kwok, Hau Chung Man

Research output: Journal article publicationJournal articleAcademic researchpeer-review

34 Citations (Scopus)

Abstract

Laser surface treatments with high and low fluence were employed to induce melting and transformation hardening on 440C. While melting could bring about better improvement in corrosion resistance, transformation hardening was more effective in enhancing the cavitation erosion resistance. Compared with conventional heat treatment, laser treatments resulted in higher corrosion resistance with a wide passive range in NaCl solution, and also in higher cavitation erosion resistance in both deionized water and NaCl solution.
Original languageEnglish
Pages (from-to)88-93
Number of pages6
JournalMaterials Letters
Volume58
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 2004

Keywords

  • Cavitation erosion
  • Corrosion
  • Laser surface melting
  • Laser transformation hardening

ASJC Scopus subject areas

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

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