Powder bed fusion additive manufacturing of Ni-based superalloys: a review of the main microstructural constituents and characterization techniques

MP Haines, VV Rielli, S Primig, N Haghdadi - Journal of Materials Science, 2022 - Springer
Metal additive manufacturing (AM) has unlocked unique opportunities for making complex
Ni-based superalloy parts with reduced material waste, development costs, and production …

[HTML][HTML] Heat-treated nickel alloys produced using laser powder bed fusion-based additive manufacturing methods: a review

A Dwivedi, MK Khurana, YG Bala - Chinese Journal of Mechanical …, 2023 - Elsevier
Laser powder bed fusion (LPBF) is the most widely used metal additive manufacturing
process. It is a novel layer-by-layer manufacturing technique based on a geometrical model …

A comparative analysis of Inconel 718 made by additive manufacturing and suction casting: Microstructure evolution in homogenization

Y Zhao, K Li, M Gargani, W Xiong - Additive Manufacturing, 2020 - Elsevier
Homogenization is one of the critical stages in the post-heat treatment of additive
manufacturing (AM) component to achieve uniform microstructure. During homogenization …

Hybrid post-processing effects of magnetic abrasive finishing and heat treatment on surface integrity and mechanical properties of additively manufactured Inconel …

K Li, R Ma, M Zhang, W Chen, X Li, DZ Zhang… - Journal of Materials …, 2022 - Elsevier
Desired microstructure and surface integrity are critical to achieving the high performance of
additively manufactured components. In the present work, the hybrid post-processes of …

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 …

[HTML][HTML] On the detailed morphological and chemical evolution of phases during laser powder bed fusion and common post-processing heat treatments of IN718

VV Rielli, A Piglione, MS Pham, S Primig - Additive Manufacturing, 2022 - Elsevier
IN718 is the most common Ni-based superalloy for manufacturing aircraft engine parts via
thermo-mechanical treatments. The evolution of nanoscale strengthening phases is well …

Differentiation of γ′-and γ ″-precipitates in Inconel 718 by a complementary study with small-angle neutron scattering and analytical microscopy

R Lawitzki, S Hassan, L Karge, J Wagner, D Wang… - Acta Materialia, 2019 - Elsevier
We present an experimental method to distinguish and quantify the two strengthening
phases γ′ and γ ″in the nickel-based superalloy Inconel 718. So far, this was only …

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 …

Fine grains with high-density annealing twins and precipitates inducing favorable strength and excellent plasticity in laser powder bed fusion-fabricated Inconel 718 …

B Liu, J Xu, Y Gao, Y Hu, X Yang, Y Ding… - Journal of Materials …, 2024 - Elsevier
Tailoring high-density annealing twins in laser powder bed fusion (LPBF)-fabricated alloys
based on their intrinsic residual stress requires high annealing temperatures and/or long …

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 …