Revealing the stress corrosion cracking initiation mechanism of alloy 718 prepared by laser powder bed fusion assessed by microcapillary method
Artikel i vetenskaplig tidskrift, 2022

Stress corrosion cracking (SCC) behaviour of L-PBF processed alloy 718 in chloride-containing solution was revealed, utilizing the microcapillary method under constant tensile loading. Results were compared with conventionally produced counterparts. Passive layer resistance was compared quantitatively by implementing electrochemical polarization experiments, in as-received and under tensile loading states. Superior corrosion and SCC resistance of L-PBF specimens under tensile loading were identified. Submicron cracks were initiated adjacent to the subgrain boundaries and the underlying mechanisms were elucidated as the synergistic effect of various microstructural factors. Data availability: The raw data with the findings of this article cannot be shared since there is ongoing research on this topic.

Corrosion assessment

Additive manufacturing

Microcapillary electrochemical method

Laser powder bed fusion

Stress corrosion cracking

Författare

Arshad Yazdanpanah

Università di Padova

Mattia Franceschi

Università di Padova

Reynier I. Revilla

Vrije Universiteit Brüssel (VUB)

Saeed Khademzadeh

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Università di Padova

Iris De Graeve

Vrije Universiteit Brüssel (VUB)

Manuele Dabalà

Università di Padova

Corrosion Science

0010-938X (ISSN)

Vol. 208 110642

Ämneskategorier

Teknisk mekanik

Annan materialteknik

Korrosionsteknik

DOI

10.1016/j.corsci.2022.110642

Mer information

Senast uppdaterat

2023-10-26