Unexpected erosion-corrosion behaviour of 316L stainless steel produced by selective laser melting

Majid Laleh, Anthony E. Hughes, Wei Xu, Ian Gibson, Mike Y. Tan*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

23 Citations (Scopus)

Abstract

The erosion-corrosion behaviour of a near fully dense 316L stainless steel (316L SS), with relative density higher than 99.5%, produced by selective laser melting (SLM) has been evaluated, for the first time, in a jet impingement system. Although the SLM-produced 316L SS possessed superior pitting corrosion resistance and higher hardness, unexpectedly, it has shown lower erosion-corrosion resistance than its conventionally produced commercial counterpart. This behaviour has been related to weaker repassivation ability of the SLM-produced 316L SS mainly due to the presence of the SLM process-induced pores within the specimen.

Original languageEnglish
Pages (from-to)67-74
Number of pages8
JournalCorrosion science
Volume155
DOIs
Publication statusPublished - 15 Jul 2019
Externally publishedYes

Keywords

  • Electrochemical calculation
  • Erosion-corrosion
  • Repassivation
  • Selective laser melting
  • Stainless steel

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