Fatigue crack growth mechanisms in powder metallurgy Ni-based superalloys—A review

R Jiang, YD Song, PA Reed - International Journal of Fatigue, 2020 - Elsevier
Powder metallurgy (PM) Ni-based superalloys are widely used for aeroengine turbine disc
applications due to their excellent mechanical properties and good corrosion resistance at …

Mechanism of intermediate temperature embrittlement of Ni and Ni-based superalloys

L Zheng, G Schmitz, Y Meng, R Chellali… - Critical Reviews in …, 2012 - Taylor & Francis
Ni-based superalloys play an important role in aircraft engine propulsion. However, many
experiments demonstrated that these alloys as well as Ni always show ductility loss at …

Intermediate temperature embrittlement in a precipitation-hardened high-entropy alloy: The role of heterogeneous strain distribution and environmentally assisted …

BX Cao, DX Wei, XF Zhang, HJ Kong, YL Zhao… - Materials Today …, 2022 - Elsevier
Severe intergranular embrittlement has been found in a wide range of polycrystalline
metallic materials in the intermediate temperature regime, setting severe limits on their …

Effects of creep and oxidation to thermomechanical fatigue life assessment for nickel-based superalloy

J Lu, H Yuan - International Journal of Fatigue, 2023 - Elsevier
The present work focuses on the quantification of creep and oxidation effects in the
prediction of both isothermal and thermomechanical fatigue life for a nickel-based …

[HTML][HTML] Environmentally-assisted grain boundary attack as a mechanism of embrittlement in a nickel-based superalloy

AAN Németh, DJ Crudden, DEJ Armstrong, DM Collins… - Acta Materialia, 2017 - Elsevier
The loss of ductility in the high strength polycrystalline superalloy 720Li is studied in air
between room temperature and 1000° C. Tensile ductility is influenced profoundly by the …

Intergranular crack tip oxidation in a Ni-base superalloy

L Viskari, M Hörnqvist, KL Moore, Y Cao, K Stiller - Acta Materialia, 2013 - Elsevier
High-temperature intergranular crack tip oxidation under a single 600 s long sustained
tensile load at 700° C was studied for the Ni-base superalloy Allvac 718Plus. High …

Heterogenous columnar-grained high-entropy alloys produce exceptional resistance to intermediate-temperature intergranular embrittlement

BX Cao, HJ Kong, L Fan, JH Luan, ZB Jiao, JJ Kai… - Scripta Materialia, 2021 - Elsevier
High-entropy alloys (HEAs) strengthened by coherent nanoparticles show great potentials
for elevated-temperature structural applications, which however, generally suffer from a …

Oxidation accelerated dwell fatigue crack growth mechanisms of a coarse grained PM Ni-based superalloy at elevated temperatures

CH Wu, R Jiang, LC Zhang, YC Wang, Y Chen… - Corrosion …, 2022 - Elsevier
Fatigue crack growth (FCG) mechanisms of Ni-based superalloy FGH4098 at 650℃− 800℃
was investigated. The increased temperature and prolonged dwell time enhance the FCG …

Mechanism of intermediate temperature abnormal plasticity in Co–Al–W-base superalloy

H Wang, L Wang, Y Liu, X Song - Materials Science and Engineering: A, 2024 - Elsevier
The mechanism of intermediate temperature abnormal plasticity of Co–Al–W-base
superalloy was investigated. The interrupted tensile specimens were systematically …

Temperature and strain-rate dependence of the elevated temperature ductility of Inconel 718 prepared by selective laser melting

TD McLouth, DB Witkin, JR Lohser, SD Sitzman… - Materials Science and …, 2021 - Elsevier
The elevated temperature tensile properties of SLM IN718 were measured as a function of
strain rate and test temperature to better understand the time-dependent and thermal …