Low-cycle fatigue behavior of a solution-treated and HIPped nickel-based single-crystal superalloy at 760° C

S He, L Li, Y Zhao, W An, F Lu, J Zhang, S Lu… - Materials Science and …, 2023 - Elsevier
Micropores have a substantial impact on the fatigue behaviors of nickel-based single-crystal
(SX) superalloys. Nonetheless, Hot Isostatic Pressing (HIP) treatment is an available …

Fatigue crack initiation and propagation behavior of nickel-based single crystal DD6 under different drilling processes

F Li, Y Zhang, Z Wu, X Ren, X Yue, H Pei… - Materials Science and …, 2022 - Elsevier
The fatigue crack initiation and propagation behavior of film cooling holes (FCHs) under
different drilling processes are of great significance to key structural parts. In this paper, it …

Crack initiation anisotropy of Ni-based SX superalloys in the very high cycle fatigue regime

A Cervellon, CJ Torbet, TM Pollock - Materials Science And Engineering: A, 2021 - Elsevier
The anisotropic fatigue properties of three Ni-based SX superalloys (AM1, CMSX-4 and MC-
NG) were investigated in the very high cycle fatigue regime at 20 kHz, R=− 1 and 750° C …

The EIFS-based fatigue life prediction approach of nickel-based single crystals with film cooling holes at elevated temperature

F Li, Z Wen, Z Wu, Z Li, H Pei, Q Yin, Q Mao… - International Journal of …, 2023 - Elsevier
In this study, a new framework for the fatigue life prediction of nickel-base single crystal (SX)
superalloys with different drilling film cooling holes (FCHs) at high temperatures (900℃ and …

Effect of rafted microstructure and its temperature dependency on fatigue crack propagation in a single‐crystal Ni‐base superalloy

M Sakaguchi, R Okamoto, T Karato… - Fatigue & Fracture of …, 2023 - Wiley Online Library
Abstract Effects of rafted microstructure and its temperature dependency on fatigue crack
propagation (FCP) in a single‐crystal Ni‐base superalloy are experimentally investigated …

Transition behavior from Mode I cracking to crystallographic cracking in a Ni-base single crystal superalloy

X Chen, M Sakaguchi - International Journal of Fatigue, 2020 - Elsevier
The fatigue crack propagation of Ni-base single crystal superalloy strongly depends on the
crystallographic orientation and usually shows transition behavior from Mode I cracking to …

A nanoscale study of nucleation and propagation of Zener types cracks at dislocations: Phase field crystal model

ZY Liu, YJ Gao, QQ Deng, YX Li, ZJ Huang… - Computational Materials …, 2020 - Elsevier
In order to clarify the specific causes of Zener-type crack initiation in the material and the
characteristics during the crack propagation, the Phase Field Crystal model (PFC) is used to …

Fatigue life assessment of nickel-based single crystals considering equivalent initial flaw size model and anisotropy

F Li, Z Wen, Z Wu, H Pei, Z Yue - International Journal of Fatigue, 2022 - Elsevier
This paper presents a novel modeling framework for predicting fatigue life performance with
varying film cooling holes (FCHs). Within this framework, in-situ crack propagation tests of …

Criteria evaluation for the transition of cracking modes in a single-crystal nickel-base superalloy

C Busse, D Gustafsson, F Palmert, B Sjödin… - Theoretical and Applied …, 2020 - Elsevier
Single-crystal nickel-base superalloys frequently experience two distinct fatigue crack
growth modes. It has been observed that, under certain conditions, cracks transition from a …

Study on the short fatigue crack initiation and propagation behavior of 42CrMo

N Xu, Z Fu, Y Wang, X Shen - Advances in Mechanical …, 2022 - journals.sagepub.com
A micro-tensile fatigue test of 42CrMo alloy steel was carried out. The result shows that the
crack initiation and propagation of the material could be characterized with randomness and …