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Journals / Konya Mühendislik Bilimleri Dergisi / 2023 / Cilt: 11 Sayı: 3

PRODUCTION OF OXIDE DISPERSION STRENGTHENED INCONEL 718 ALLOYS USING CONVENTIONAL POWDER METALLURGY AND ADDITIVE MANUFACTURING METHODS

Eda AYDOĞAN GÜNGÖR
Pages
678–692
Publication Date
2023-09-01
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

This study sheds light on producing ODS IN718 alloys with high-density nano-oxides using powder metallurgy and additive manufacturing methods.

📌 3 Key Takeaways

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Objective & Hypothesis:Oxide dispersion strengthened (ODS) Ni-based alloys having a high density of nano-oxides (NOs) (<10 nm) are considered to be good candidates for extreme environments, such as high temperature, radiation, and corrosion.
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Key Findings & Data:In this study, ODS IN718 alloys have been produced using conventional powder metallurgy (PM) and novel selective laser melting (SLM) additive manufacturing.
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Conclusion & Impact:This study sheds light on producing ODS IN718 alloys with high-density nano-oxides using powder metallurgy and additive manufacturing methods.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Additive Manufacturing · Inconel 718 · Nano-Particle

Abstract

Oxide dispersion strengthened (ODS) Ni-based alloys having a high density of nano-oxides (NOs) (<10 nm) are considered to be good candidates for extreme environments, such as high temperature, radiation, and corrosion. In this study, ODS IN718 alloys have been produced using conventional powder metallurgy (PM) and novel selective laser melting (SLM) additive manufacturing. The effect of processing routes on the microstructure, in particular on the nano-oxide formation and structure has been investigated. It has been found that the powder metallurgy method that consists of compressing followed by sintering at 1250 and 1500 °C results in a nano-granular structure with homogenously distributed fine nano-oxides having a high number density. Similarly, SLM results in a high number density of fine nano-oxides; however, the particles exist in groups with the grains/cells. The nano-oxides are determined to be Y2Ti2O7, Y2TiO5 or YTiO3 and Y-Al-O. The deviation in the lattice parameters of Y2Ti2O7 infers the existence of some Al in the structure. This study sheds light on producing ODS IN718 alloys with high-density nano-oxides using powder metallurgy and additive manufacturing methods.

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Cite This Article

GÜNGÖR, E. A. (2023). PRODUCTION OF OXIDE DISPERSION STRENGTHENED INCONEL 718 ALLOYS USING CONVENTIONAL POWDER METALLURGY AND ADDITIVE MANUFACTURING METHODS. Konya Mühendislik Bilimleri Dergisi, Cilt: 11 Sayı: 3, 678–692. https://ajindex.com/articles/959622

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References (6)

  1. H. Zhang, C. Li, Q. Guo, Z. Ma, H. Li, and Y. Liu, "Improving creep resistance of nickel-based superalloy Inconel 718 by tailoring gamma double prime variants," Scripta Materialia, vol. 164, pp. 66-70, 2019/04/15/ 2019, doi: https://doi.org/10.1016/j.scriptamat.2019.01.041.
  2. S. Pratheesh Kumar, S. Elangovan, R. Mohanraj, and J. R. Ramakrishna, "A review on properties of Inconel 625 and Inconel 718 fabricated using direct energy deposition," Materials Today: Proceedings, vol. 46, pp. 7892-7906, 2021/01/01/ 2021, doi: https://doi.org/10.1016/j.matpr.2021.02.566. E. Aydogan et al., "Effect of tube processing methods on microstructure, mechanical properties and irradiation response of 14YWT nanostructured ferritic alloys," Acta Materialia, vol. 134, pp. 116-127, 2017/08/01/ 2017, doi: https://doi.org/10.1016/j.actamat.2017.05.053.
  3. E. Aydogan, O. El-Atwani, S. Takajo, S. C. Vogel, and S. A. Maloy, "High temperature microstructural stability and recrystallization mechanisms in 14YWT alloys," Acta Materialia, vol. 148, pp. 467-481, 2018/04/15/ 2018, doi: https://doi.org/10.1016/j.actamat.2018.02.006. G. R. Odette, "Recent Progress in Developing and Qualifying Nanostructured Ferritic Alloys for Advanced Fission and Fusion Applications," JOM, Article in Press 2014, doi: 10.1007/s11837-014-1207-5.
  4. G. R. Odette, M. J. Alinger, and B. D. Wirth, "Recent Developments in Irradiation-Resistant Steels," Annual Review of Materials Research, vol. 38, no. 1, pp. 471-503, 2008, doi: doi:10.1146/annurev.matsci.38.060407.130315. T. Chen et al., "Microstructural changes and void swelling of a 12Cr ODS ferritic-martensitic alloy after high-dpa self-ion irradiation," Journal of Nuclear Materials, Article vol. 467, pp. 42-49, 2015, Art no. 49325, doi: 10.1016/j.jnucmat.2015.09.016. Y. Wu, E. M. Haney, N. J. Cunningham, and G. R. Odette, "Transmission electron microscopy characterization of the nanofeatures in nanostructured ferritic alloy MA957," Acta Materialia, vol. 60, no. 8, pp. 3456-3468, 5// 2012, doi: http://dx.doi.org/10.1016/j.actamat.2012.03.012.
  5. Z. Zhang, T. A. Saleh, S. A. Maloy, and O. Anderoglu, "Microstructure evolution in MA956 neutron irradiated in ATR at 328 °C to 4.36 dpa," Journal of Nuclear Materials, vol. 533, p. 152094, 2020/05/01/ 2020, doi: https://doi.org/10.1016/j.jnucmat.2020.152094.
  6. C. W. Park, J. M. Byun, W. J. Choi, S. Y. Lee, and Y. D. Kim, "Improvement of high temperature mechanical properties of Ni-based oxide dispersion strengthened alloys by prefer