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Pitting corrosion of 17-4PH stainless steel manufactured by laser beam melting

Abstract : The pitting corrosion behaviour of a 17-4PH martensitic stainless steel (MSS) manufactured by power bed laser beam melting (LBM) was compared to that of a wrought MSS. More noble pitting potentials were measured for LBM samples, probably due to a smaller size of NbCs as compared to wrought MSS. The metastable pits were less numerous, but had a higher nucleation rate and longer life time for the LBM samples compared to the wrought MSS. This was explained by assuming a decrease in the repassivation ability of LBM samples due to small gas pores
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https://hal.archives-ouvertes.fr/hal-03165278
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Wednesday, March 10, 2021 - 3:26:21 PM
Last modification on : Friday, March 12, 2021 - 3:20:28 AM
Long-term archiving on: : Friday, June 11, 2021 - 7:01:10 PM

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Adrien Barroux, Nadège Ducommun, Eric Nivet, Lydia Laffont, Christine Blanc. Pitting corrosion of 17-4PH stainless steel manufactured by laser beam melting. Corrosion Science, Elsevier, 2020, 169, pp.108594. ⟨10.1016/J.CORSCI.2020.108594⟩. ⟨hal-03165278⟩

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