[HTML][HTML] Direct observation of crack formation mechanisms with operando Laser Powder Bed Fusion X-ray imaging

H Ghasemi-Tabasi, C de Formanoir… - Additive …, 2022 - Elsevier
Laser powder bed fusion (L-PBF) is a versatile additive manufacturing process that can print
geometrically complex metal parts for a variety of applications. However, poor control of …

Strain accumulation and fatigue crack initiation at pores and carbides in a SX superalloy at room temperature

R Jiang, DJ Bull, A Evangelou, A Harte… - International Journal of …, 2018 - Elsevier
Pores and carbides inherited from SX superalloy manufacturing processes usually act as
stress concentrators and are preferential sites for fatigue crack initiation. In this study, pore & …

Insight into the low cycle fatigue deformation mechanisms of minor element doping single crystal superalloys at elevated temperature

Q Wang, Y Wu, J Chen, J Song, C Xiao, X Hui - Scripta Materialia, 2023 - Elsevier
The roles of minor elements, usually as grain-boundary strengtheners, in the fatigue
properties of single crystal (SX) superalloys have not received adequate attention. Our study …

Effect of wall thickness on micropores and stress-rupture properties of a single-crystal nickel-based superalloy

JJ Wu, J Meng, MK Zou, LN Yao, XG Wang… - Materials Science and …, 2023 - Elsevier
The effect of wall thickness on the microporosity and stress-rupture properties of a second-
generation single-crystal nickel-based superalloy was investigated using optical …

Low cycle fatigue and dwell-fatigue of diffusion coated superalloy Inconel 713LC at 800° C

I Šulák, K Obrtlík, S Hutařová, M Juliš… - Materials …, 2020 - Elsevier
The charm of diffusion coatings is mainly in their protective function of the surface of gas
turbine components, which are often subjected to fatigue-creep loading in extremely hostile …

The sharp drop in fatigue crack growth life at a critical elevated temperature for a PM Ni-based superalloy FGH97

C Xu, ZH Yao, JX Dong - Materials Science and Engineering: A, 2019 - Elsevier
The fatigue crack growth (FCG) experiments for Ni-based powder metallurgy (PM) FGH97
superalloy were performed from RT to 800° C in air. It has been found that the FCG life …

Microstructure evolution and mechanical performance of nickel based superalloy C1023 at elevated temperatures

Y Liu, J Wang, M Kang, F Mao, J Li, G Wang… - Materials …, 2018 - Elsevier
Microstructure evolution of polycrystalline nickel based superalloy C1023 casting was
investigated by comparing as cast superalloy and heat treated superalloy in the paper …

Phase Evolution and Thermal Expansion Behavior of a γ′ Precipitated Ni-Based Superalloy by Synchrotron X-Ray Diffraction

Z Yan, Q Tan, H Huang, H Qin, Y Rong, Z Bi… - Acta Metallurgica Sinica …, 2022 - Springer
The phase evolution and thermal expansion behavior in superalloy during heating play an
essential role in controlling the size and distribution of precipitates, as well as optimizing …

[HTML][HTML] An In Situ X-ray Tomography Study on the Stress Corrosion Behavior of a Ni-Based Single-Crystal Superalloy

H Niu, F Zheng, H Wang, C Liu, R Li, X Li, H Wu… - … Materials Transactions A, 2023 - Springer
The present study was devoted to investigating the stress corrosion behavior of Ni-based
single-crystal superalloys using in situ three-dimensional X-ray tomography. The dynamics …

Data rich imaging approaches assessing fatigue crack initiation and early propagation in a DS superalloy at room temperature

YG Tan, DJ Bull, R Jiang, A Evangelou… - Materials Science and …, 2021 - Elsevier
Crack initiation and early propagation behavior of the directionally solidified (DS) superalloy
CM247LC has been assessed by data rich imaging approaches. These include …