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

doi:10.1016/j.scriptamat.2017.07.037

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^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

299 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 language	English
Pages (from-to)	94-98
Number of pages	5
Journal	Scripta Materialia
Volume	141
DOIs	https://doi.org/10.1016/j.scriptamat.2017.07.037
Publication status	Published - Dec 2017
Externally published	Yes

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title = "On the enhanced corrosion resistance of a selective laser melted austenitic stainless steel",

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.",

keywords = "Additive manufacturing, Pitting corrosion, Selective laser melting, Stainless steel, Sulphide inclusions",

author = "Qi Chao and Victor Cruz and Sebastian Thomas and Nick Birbilis and Paul Collins and Adam Taylor and Hodgson, {Peter D.} and Daniel Fabijanic",

note = "Publisher Copyright: {\textcopyright} 2017 Acta Materialia Inc.",

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AU - Chao, Qi

AU - Cruz, Victor

AU - Thomas, Sebastian

AU - Birbilis, Nick

AU - Collins, Paul

AU - Taylor, Adam

AU - Hodgson, Peter D.

AU - Fabijanic, Daniel

PY - 2017/12

Y1 - 2017/12

N2 - 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.

AB - 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.

KW - Additive manufacturing

KW - Pitting corrosion

KW - Selective laser melting

KW - Stainless steel

KW - Sulphide inclusions

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DO - 10.1016/j.scriptamat.2017.07.037

M3 - Article

SN - 1359-6462

VL - 141

SP - 94

EP - 98

JO - Scripta Materialia

JF - Scripta Materialia

ER -

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

Abstract

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