Cooperative effect of strength and ductility processed by thermomechanical treatment for Cu–Al–Ni alloy

X Tian, Y Zhao, T Gu, Y Guo, F Xu, H Hou - Materials Science and …, 2022 - Elsevier
Abstract Cu–Al–Ni alloys are one class of typical precipitation strengthening alloy, its
mechanical properties are highly sensitive to temperature and strain. In this work, the …

Tensile behavior of single-crystal superalloy with different structured cooling holes

Z Zhang, W Wang, R Jiang, C Kim, W Tian… - International Journal of …, 2022 - Elsevier
Film cooling hole structures significantly influence the mechanical behavior of a single
crystal turbine blade. This study investigates the tensile behavior of nickel-based single …

A discrete dislocation dynamics study of precipitate bypass mechanisms in nickel-based superalloys

S Chatterjee, Y Li, G Po - International Journal of Plasticity, 2021 - Elsevier
Order strengthening in nickel-based superalloys is associated with the extra stress required
for dislocations to bypass the γ′ precipitates distributed in the γ matrix. Depending on the …

A microstructural rafting state-based constitutive model for single crystal Ni-based superalloys at elevated temperature

YS Fan, L Tan, XG Yang, DQ Shi, RZ Li, J Huang… - International Journal of …, 2022 - Elsevier
Single crystal (SC) Ni-based superalloys undergo microstructural degradations such as
rafting and coarsening due to the extremely harsh service environment, which consequently …

Study on oxidation-creep behavior of a Ni-based single crystal superalloy based on crystal plasticity theory

H Pei, Y Yang, S Gu, Y Zhao, X Yao, Z Wen… - Materials Science and …, 2022 - Elsevier
Long-term high temperature oxidation seriously affects the creep properties of the Ni-based
single crystal superalloy. By using experimental research together with finite element …

Effect of heat treatment on microstructure and mechanical properties of GH4099 superalloy fabricated by selective laser melting

K Chang, L Ma, P Li, J Lv, X You, Y Zhang… - Journal of Alloys and …, 2023 - Elsevier
In this study, the effect of heat treatment on the microstructures and mechanical properties of
GH4099 superalloy fabricated by selective laser melting (SLM) was investigated. The …

A sustainable, high-quality method for machining film cooling holes: Cryogenic airflow-assisted electrochemical discharge drilling

T Geng, Z Xu, J Lu - Journal of Cleaner Production, 2023 - Elsevier
Film cooling hole is an essential part of aero-engines, necessitating without recast layer, no
stray corrosion, and high machining efficiency. Its sustainable manufacturing has been at the …

Crystal-plasticity modeling of monotonic and cyclic softening in inconel 718 superalloy

JB le Graverend - International Journal of Mechanical Sciences, 2023 - Elsevier
A phenomenological model is proposed to predict both monotonic and cyclic softening in
Inconel 718 superalloy at 650° C. Contrary to the current cyclic softening models consisting …

Abnormal densification of dislocation networks during creep deformation in a single crystal superalloy with a small γ/γ′ lattice misfit

X Tao, X Wang, J Li, X Sun, Y Zhou - Scripta Materialia, 2025 - Elsevier
Generally, with a large lattice misfit, dislocations tend to move smoothly via cross-slip in γ
channels, and rapidly reorient themselves from the< 110> to< 100> direction on the surface …

Anisotropic Tensile Properties of Ni-Based Single-Crystal Superalloys: A Phase-Field-Informed Crystal-Plasticity Finite-Element Investigation

R Harikrishnan, JB le Graverend - International Symposium on Superalloys, 2024 - Springer
Ni-based single-crystal superalloys, mostly used in turbine blade applications, are inherently
anisotropic and usually cast in the⟨ 001⟩ direction. Any slight misorientations result in …