Crack paths in single-crystal Ni-base superalloys under isothermal and thermomechanical fatigue

RW Neu - International Journal of Fatigue, 2019 - Elsevier
Fatigue crack paths in single-crystal Ni-base superalloys do not follow the classical Stage
I/Stage II behavior. In fact, the opposite often occurs with cracks growing initially in Mode I …

High cycle fatigue life prediction model based on crystal plasticity and continuum damage mechanics for Ni-based single crystal superalloys under a multiaxial stress …

Y Zhang, X Zhang, J Wang, X Ren, X Wang… - International Journal of …, 2023 - Elsevier
A high cycle fatigue life prediction model based on continuum damage mechanics, crystal
plasticity and critical distance theory is developed. A novel damage evolution law for …

[HTML][HTML] An analysis of fatigue failure mechanisms in an additively manufactured and shot peened IN 718 nickel superalloy

E Salvati, AJG Lunt, CP Heason, GJ Baxter… - Materials & Design, 2020 - Elsevier
The family of additive manufacturing techniques has been attracting significant attention of
manufacturers and researchers, due to its unrivalled flexibility to fabricate and repair …

Atomistic simulation of creep deformation mechanisms in nickel-based single crystal superalloys

AR Khoei, GT Eshlaghi, S Shahoveisi - Materials Science and Engineering …, 2021 - Elsevier
In this paper, the creep deformation mechanisms are investigated in nickel-based single
crystal superalloys. Two-dimensional molecular dynamics (MD) simulations are conducted …

[HTML][HTML] A comparative study between in-and out-of-phase thermomechanical fatigue behaviour of a single-crystal superalloy

M Segersäll, D Deng - International Journal of Fatigue, 2021 - Elsevier
In this study, the difference between in-phase (IP) and out-of-phase (OP) thermomechanical
fatigue (TMF) cycling at 100–850° C of a single-crystal superalloy is investigated both from a …

Equivalent method of evaluating mechanical properties of perforated Ni-based single crystal plates using artificial neural networks

Y Zhang, Z Wen, H Pei, J Wang, Z Li, Z Yue - Computer Methods in Applied …, 2020 - Elsevier
Creep experiments were performed to study the mechanical characteristics of Ni-based
single crystal superalloy samples with densely arranged air film holes. An equivalent model …

[HTML][HTML] Anisotropic behaviours of LPBF Hastelloy X under slow strain rate tensile testing at elevated temperature

CH Yu, RL Peng, TL Lee, V Luzin, JE Lundgren… - Materials Science and …, 2022 - Elsevier
To improve the understanding of high temperature mechanical behaviours of LPBF Ni-
based superalloys, this work investigates the influence of an elongated grain structure and …

Correlation the< 112>{111} slip with high-temperature tension/compression asymmetry in the single-crystal nickel-based superalloy PWA1483

P Zhang, J Li, Y Yuan, YF Gu, ZH Gao… - Materials Research …, 2023 - Taylor & Francis
The yield strength of the [001]-orientated single-crystal nickel-based superalloy PWA1483 is
investigated under tension/compression at 1000 and 1100° C. We found that the …

Deformation nanotwins in a single-crystal Ni-based superalloy at room temperature and low strain rate

H Zhang, Y Pei, X Gong, X Chen, W Zhang… - Materials …, 2022 - Elsevier
The deformation microstructure of single crystal superalloys CMSX-4 was investigated
during uniaxial tensile with a strain rate of 5× 10− 3 s− 1 at room temperature. The objection …

Low cycle fatigue behaviour of a single crystal Ni-based superalloy with a central hole: Effect of inhomogeneous rafting microstructure

XG Yang, L Tan, TX Sui, DQ Shi, YS Fan - International Journal of Fatigue, 2021 - Elsevier
To revealing the role of unevenly microstructural rafting caused by stress gradient on the
fatigue resistance of engineering parts made by single crystal (SC) Ni-based superalloys, a …