High temperature oxidation of inconel 939 produced by additive manufacturing
Artikel i vetenskaplig tidskrift, 2024
High temperature oxidation of additively manufactured (Laser-powder bed fusion) IN939 (AM IN939) was studied at 900°C in dry air for 168 hours. AM IN939 cut parallel/perpendicular to the building direction, including conventionally manufactured (CM) IN939 were exposed to assess the influence of AM microstructure and its inherent anisotropy on oxidation properties. Microstructural anisotropy had no significant impact on oxidation properties. AM and CM IN939 exhibited nearly identical mass gains, yet local spallation was observed in the former. Further investigation involved oxidation of heat-treated AM IN939, revealing improved adhesion, possibly due to transformation of fine dendritic/cellular structure into coarse equiaxed grains.
Cr O 2 3
High temperature oxidation
Additive manufacturing
Laser-Powder Bed Fusion
Spallation
IN939
Författare
Alberto Visibile
Chalmers, Kemi och kemiteknik, Energi och material
Kerem Gündüz
Chalmers, Kemi och kemiteknik, Energi och material
Gebze Teknik Üniversitesi (GYTE)
Mohammad Sattari
Chalmers, Fysik, Mikrostrukturfysik
Irina Fedorova
Chalmers, Fysik, Mikrostrukturfysik
Kanthal AB
Mats Halvarsson
Chalmers, Fysik, Mikrostrukturfysik
Jan Froitzheim
Chalmers, Kemi och kemiteknik, Energi och material
Corrosion Science
0010-938X (ISSN)
Vol. 233 112067Ämneskategorier (SSIF 2011)
Bearbetnings-, yt- och fogningsteknik
DOI
10.1016/j.corsci.2024.112067