High-temperature oxidation behavior of additively manufactured IN625: Effect of microstructure and grain size
Journal article, 2022
High-temperature oxidation of additively manufactured (AM) Ni-base alloy IN625 has been studied in air and Ar-5%H2-3%H2O at 900–1000 °C. AM material is found to oxidize faster than the conventionally manufactured (CM) IN625 due to severe intergranular oxidation observed in the former. The AM IN625 was heat treated at 1100–1250 °C and hot rolled at 980 °C in order to modify the AM microstructure, primarily grain size, and analyze its role in alloy oxidation behavior. Grain size is shown to affect overall oxidation kinetics but not the intergranular oxidation morphology.
High-temperature oxidation
SLM
Additive manufacturing
Ni-base alloys
IN625
Intergranular corrosion
Author
Anton Chyrkin
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Kerem Gündüz
Gebze Institute of Technology (GYTE)
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Irina Fedorova
Chalmers, Physics, Microstructure Physics
Mohammad Sattari
Chalmers, Physics, Microstructure Physics
Alberto Visibile
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Mats Halvarsson
Chalmers, Physics, Microstructure Physics
Jan Froitzheim
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Marta Krystyna Stiller
Chalmers, Physics, Microstructure Physics
Corrosion Science
0010-938X (ISSN)
Vol. 205 110382Subject Categories
Ceramics
Metallurgy and Metallic Materials
Corrosion Engineering
DOI
10.1016/j.corsci.2022.110382