On the enhanced corrosion resistance of a selective laser melted austenitic stainless steel

Qi Chao, Victor Cruz, Sebastian Thomas, Nick Birbilis, Paul Collins, Adam Taylor, Peter D. Hodgson, Daniel Fabijanic

Research output: Contribution to journalArticleResearchpeer-review

76 Citations (Scopus)

Abstract

Corrosion of stainless steels, including the austenitic Fe-Cr-Ni alloys, is associated with MnS inclusions that provide local sites for corrosion pits. Much research effort has been focused on the role of MnS in corrosion of conventional (cast and wrought) stainless steel to date, including microanalysis of MnS and the surrounding microchemistry. Herein, it was elucidated that an austenitic stainless steel (type 316L) when manufactured through selective laser melting was able to be produced without MnS inclusions and hence with no accompanying Cr-depletion in the vicinity of MnS, resulting in superior corrosion resistance relative to wrought form.

Original languageEnglish
Pages (from-to)94-98
Number of pages5
JournalScripta Materialia
Volume141
DOIs
Publication statusPublished - 1 Dec 2017

Keywords

  • Additive manufacturing
  • Pitting corrosion
  • Selective laser melting
  • Stainless steel
  • Sulphide inclusions

Cite this

Chao, Q., Cruz, V., Thomas, S., Birbilis, N., Collins, P., Taylor, A., Hodgson, P. D., & Fabijanic, D. (2017). On the enhanced corrosion resistance of a selective laser melted austenitic stainless steel. Scripta Materialia, 141, 94-98. https://doi.org/10.1016/j.scriptamat.2017.07.037