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https://dspace.iiti.ac.in/handle/123456789/9936
| Title: | High-temperature oxidation performance of Inconel 625 superalloy fabricated by wire arc additive manufacturing |
| Authors: | Kumar, Pravin Siva Jain, Neelesh Kumar |
| Keywords: | Additives|Binary alloys|Carbides|Chromium alloys|Growth kinetics|Nickel|Nickel alloys|Superalloys|Thermooxidation|X ray diffraction|A nickel|B SEM|B XRD|C oxidation|High temperature oxidation Behavior|Inconel 625 superalloys|Manufacturing techniques|Performance|Wire arc|XRD|Activation energy |
| Issue Date: | 2022 |
| Publisher: | Elsevier Ltd |
| Citation: | Sharifitabar, M., Khorshahian, S., Shafiee Afarani, M., Kumar, P., & Jain, N. K. (2022). High-temperature oxidation performance of inconel 625 superalloy fabricated by wire arc additive manufacturing. Corrosion Science, 197 doi:10.1016/j.corsci.2022.110087 |
| Abstract: | High-temperature oxidation behavior of Inconel 625 superalloy manufactured by wire arc additive manufacturing (WAAM) technique was investigated. Results showed that microstructure of the as-built alloy contained Ni-based solid-solution dendrites along with MC carbide, Laves, and δ phases. Holding of samples at 800–1000 °C for 20 h resulted in the formation of Cr2O3 and Ni3Nb phases on the surface of the alloy. However, at 1100 °C, oxidation of Ni3Nb led to the formation of CrNbO4 at the oxide/alloy interface. The growth kinetics of the oxide layer followed a parabolic law, and the diffusion activation energy was calculated as 167 kJ/mol. © 2022 Elsevier Ltd |
| URI: | https://dspace.iiti.ac.in/handle/123456789/9936 https://doi.org/10.1016/j.corsci.2022.110087 |
| ISSN: | 0010-938X |
| Type of Material: | Journal Article |
| Appears in Collections: | Department of Mechanical Engineering |
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