Solving recent challenges for wrought Ni-base superalloys

MC Hardy, M Detrois, ET McDevitt, C Argyrakis… - … Materials Transactions A, 2020 - Springer
This paper reviews the status of technology in design and manufacture of new wrought
polycrystalline Ni-base superalloys for critical engineering applications. There is a strong …

Knowledge of process-structure-property relationships to engineer better heat treatments for laser powder bed fusion additive manufactured Inconel 718

TG Gallmeyer, S Moorthy, BB Kappes, MJ Mills… - Additive …, 2020 - Elsevier
Dislocation structures, chemical segregation, γ′, γ ″, δ precipitates, and Laves phase were
quantified within the microstructures of Inconel 718 (IN718) produced by laser powder bed …

Effect of micro-segregation of alloying elements on the precipitation behaviour in laser surface engineered Alloy 718

SA Mantri, S Dasari, A Sharma, T Alam, MV Pantawane… - Acta Materialia, 2021 - Elsevier
Laser surface engineering has been employed to mimic the microstructural evolution during
laser-based additive manufacturing of Alloy 718, specifically when the layers are …

Microstructure-performance relationships in Ni-based superalloy with coprecipitation of γ'and γ''phases

S Zhou, M Hu, C Li, Q Guo, L Yu, H Ding… - Materials Science and …, 2022 - Elsevier
The correlation of microstructure-properties of the Ni-based superalloy with coprecipitation
of γ'/γ''phases has been studied in details. To obtain the different γ'/γ''microstructures, various …

On the early stages of precipitation during direct ageing of Alloy 718

F Theska, K Nomoto, F Godor, B Oberwinkler… - Acta Materialia, 2020 - Elsevier
Abstract The Ni-based superalloy Alloy 718 is used in aircraft engines as high-pressure
turbine discs and must endure challenging demands on high-temperature yield strength …

On conventional versus direct ageing of Alloy 718

F Theska, A Stanojevic, B Oberwinkler, SP Ringer… - Acta Materialia, 2018 - Elsevier
Alloy 718 is a Ni-based superalloy commonly used for parts of aircraft engines and power
plants where very high demands on high-temperature yield strength, creep and corrosion …

Improving creep resistance of nickel-based superalloy Inconel 718 by tailoring gamma double prime variants

H Zhang, C Li, Q Guo, Z Ma, H Li, Y Liu - Scripta Materialia, 2019 - Elsevier
Inconel 718 is a widely used nickel-based superalloy in aircraft engines during the past
decades, whose elevated temperature strength derives from disc-shaped gamma double …

Formation mechanisms of coprecipitates in Inconel 718 Superalloys

H Sriram, S Mukhopadhyay, K Kadirvel, R Shi, MJ Mills… - Acta Materialia, 2023 - Elsevier
Recent experimental observations have shown various γ′/γ ″coprecipitate microstructures
in Inconel 718-based alloys. Although their growth and coarsening behaviors have been …

[HTML][HTML] Effects of processing heterogeneities on the micro-to nanostructure strengthening mechanisms of an alloy 718 turbine disk

VV Rielli, F Godor, C Gruber, A Stanojevic… - Materials & Design, 2021 - Elsevier
Advancements in thermo-mechanical processing of Ni-based superalloys enable
manufacturing of engineering parts with superior mechanical properties. Forged aeroengine …

[HTML][HTML] Hardness variation in inconel 718 produced by laser directed energy deposition

L Chechik, KA Christofidou, JFS Markanday… - Materialia, 2022 - Elsevier
Directed energy deposition (DED) of Inconel 718 is of critical importance for the repair of
aerospace components, which have tight tolerances for certification, particularly on …