[HTML][HTML] The Portevin-Le Chatelier effect in nickel-base superalloys: Origins, consequences and comparison to strain ageing in other alloy systems

BS Rowlands, C Rae, E Galindo-Nava - Progress in Materials Science, 2023 - Elsevier
Abstract Dynamic Strain Ageing (DSA) has reached widespread acceptance since its
proposal in the 1940's as the mechanism behind the Portevin-Le Chatelier effect in ferritic …

High-throughput determination of high-quality interdiffusion coefficients in metallic solids: a review

J Zhong, L Chen, L Zhang - Journal of Materials Science, 2020 - Springer
Accurate interdiffusion coefficients of composition and temperature dependence are
significantly important for understanding different materials processes. However, the high …

[HTML][HTML] Dissolution kinetics of Laves phase during homogenization heat treatment of additively manufactured Inconel 718 superalloy

S Ghaemifar, H Mirzadeh - Journal of Materials Research and Technology, 2023 - Elsevier
The Laves phase in the as-built Inconel 718 (IN718) superalloy is known as undesirable
phase, which limits the industrial applications of the manufactured parts. Post-processing in …

Effect of heat treatment on microstructures and mechanical properties of Inconel 718 additively manufactured using gradient laser power

L Xu, Z Chai, B Peng, W Zhou, X Chen - Materials Science and …, 2023 - Elsevier
To achieve high-performance nickel-based superalloys by laser powder deposition for
applications in the aviation industry, post-heat treatments are always indispensable. We …

Investigation of dissolution behavior of laves phase in inconel 718 fabricated by laser directed energy deposition

S Sui, J Chen, Z Li, H Li, X Zhao, H Tan - Additive Manufacturing, 2020 - Elsevier
The mechanical properties of Inconel 718 are closely related to the morphology and size of
the Laves phase, which must be quantitatively controlled to change the effect of the Laves …

Diffusion of solutes in fcc Cobalt investigated by diffusion couples and first principles kinetic Monte Carlo

S Neumeier, HU Rehman, J Neuner, CH Zenk… - Acta Materialia, 2016 - Elsevier
The interdiffusivity of Al and the transition metal solutes Ti, V, Cr, Mn, Fe, Nb, Mo, Ru, Ta, W,
and Re in fcc Co is characterized at 1373 K, 1473 K and 1573 K by binary diffusion couples …

Gamma double prime precipitation kinetic in Alloy 718

A Devaux, L Nazé, R Molins, A Pineau… - Materials Science and …, 2008 - Elsevier
Gamma double prime (γ′′), precipitation was studied in Alloy 718 using isothermal and
isochronal aging heat treatments applied between 943 and 1003K. It is shown, that the …

A model for the creep deformation behaviour of nickel-based single crystal superalloys

Z Zhu, H Basoalto, N Warnken, RC Reed - Acta Materialia, 2012 - Elsevier
A physical model for the creep deformation of single crystal superalloys is presented that is
sensitive to chemical composition and microstructure. The rate-controlling step is assumed …

Alloy design, micromechanical and macromechanical properties of CoCrFeNiTax eutectic high entropy alloys

C Ai, F He, M Guo, J Zhou, Z Wang, Z Yuan… - Journal of Alloys and …, 2018 - Elsevier
Based on binary phase diagrams and thermodynamic calculation, CoCrFeNiTa x (x= 0.1,
0.3, 0.43, 0.5 and 0.7) eutectic high entropy alloys were designed. With increasing Ta …

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 …