Precipitation kinetics in metallic alloys: Experiments and modeling

A Deschamps, CR Hutchinson - Acta Materialia, 2021‏ - Elsevier
Nanoscale precipitation is one of the most widely used microstructural tools to manipulate
the properties of metallic alloys, and especially to reach high strength. Optimal …

A brief survey of principles of co-deposition method as a convenient procedure for preparation of metallic nanomaterials

R Taheri-Ledari, MM Salehi, F Esmailzadeh… - Journal of Alloys and …, 2024‏ - Elsevier
Among all types of nanomaterials, metal-metal and metal-oxide species have been diversely
utilized in different applications because of their unique physicochemical properties and …

Dissolution of the Laves phase and δ-precipitate formation mechanism in additively manufactured Inconel 718 during post printing heat treatments

VK Singh, D Sahoo, M Amirthalingam… - Additive …, 2024‏ - Elsevier
The microstructures of additively manufactured Inconel 718 consist of the primary phase
(dendritic) and the secondary phases (Laves and carbides). Among the secondary phases …

[HTML][HTML] Study of pre-precipitated δ phase promoting deformation twinning and recrystallization behavior of Inconel 718 superalloy during hot compression

W Jiang, J Lu, H Guan, M Wang, X Cheng, L Liu, X Liu… - Materials & Design, 2023‏ - Elsevier
The delta (δ) processing strategy is an efficient heat treatment to refine and homogenize the
grain microstructure of Inconel 718 superalloy (IN718). However, the microstructure …

Control of dislocation density maximizing precipitation strengthening effect

C Xu, WJ Dai, Y Chen, ZX Qi, G Zheng, YD Cao… - Journal of Materials …, 2022‏ - Elsevier
The strength-ductility trade-off has been the most challenging problem for structural metals
for centuries. Nanoprecipitation strengthening is an ideal approach to enhance the strength …

[HTML][HTML] Toward a better understanding of phase transformations in additive manufacturing of Alloy 718

C Kumara, AR Balachandramurthi, S Goel, F Hanning… - Materialia, 2020‏ - Elsevier
This paper presents a discussion on the phase-transformation aspects of additively
manufactured Alloy 718 during the additive manufacturing (AM) process and subsequent …

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 …

[HTML][HTML] γʹ and γ ″co-precipitation phenomena in directly aged Alloy 718 with high δ-phase fractions

VV Rielli, E Farabi, F Godor, C Gruber, A Stanojevic… - Materials & Design, 2024‏ - Elsevier
Co-precipitation of γ′ and γ′′ is the main strengthening mechanism that provides
superior high-temperature strength in directly aged Alloy 718 aerospace parts. Control of …

Microstructural evolution and formation of fine grains during fatigue crack initiation process of laser powder bed fusion Ni-based superalloy

T Shi, J Li, G Gao, J Sun, Z Yang, J Yan, G Qian - Additive Manufacturing, 2024‏ - Elsevier
This study reports the fatigue failure mechanism at very-high-cycle fatigue (VHCF) regime of
laser powder bed fusion (LPBF) GH4169 superalloy through a series of detailed …