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.
IN939
Cr O 2 3
High temperature oxidation
Additive manufacturing
Spallation
Laser-Powder Bed Fusion
Författare
Alberto Visibile
Chalmers, Kemi och kemiteknik, Energi och material
Kerem Gündüz
Gebze Teknik Üniversitesi (GYTE)
Chalmers, Kemi och kemiteknik, Energi och material
Mohammad Sattari
Chalmers, Fysik, Mikrostrukturfysik
Irina Fedorova
Chalmers, Fysik, Mikrostrukturfysik
Division of Research and Development
Mats Halvarsson
Chalmers, Fysik, Mikrostrukturfysik
Jan Froitzheim
Chalmers, Kemi och kemiteknik, Energi och material
Corrosion Science
0010-938X (ISSN)
Vol. 233 112067Ämneskategorier
Bearbetnings-, yt- och fogningsteknik
DOI
10.1016/j.corsci.2024.112067