New alloy design approach to inhibiting hot cracking in laser additive manufactured nickel-based superalloys

Y Zhao, Z Ma, L Yu, Y Liu - Acta Materialia, 2023 - Elsevier
Avoiding the formation of cracks to ensure a reliable printability and a good stability is crucial
in the laser additive manufacturing of alloys. Contrary to previous studies that have generally …

[HTML][HTML] Computational simulation of grain boundary segregation of solute atoms in nanocrystalline metals

L Zhang, Z Zhang, X Zhang, X Huang - Journal of Materials Research and …, 2022 - Elsevier
The remarkably high strength of nanocrystalline metals is of great interest to researchers
and seems to open up many interesting design applications. However, a particularly vexing …

Achieving superior elevated temperature properties in additive manufactured nickel-based superalloys through unique alloy design

Y Zhao, Q Guo, C Li, Z Yang, J Zhang, Y Huang… - Additive …, 2024 - Elsevier
Additive manufacturing (AM) offers a new solution for the integrated fabrication of complex
components, supplementing the shortcomings of conventional subtractive manufacturing …

900° C oxidation resistance of Ni-base superalloys alloyed with different refractory elements

S Yu, X Zhan, F Liu, Y Guo, Q Wang, Y Li… - Journal of Alloys and …, 2022 - Elsevier
Refractory elements are added to strengthen the Ni-based superalloys for turbine disks,
while the effects of these elements on the oxidation resistance remain to be investigated …

Microstructure control and hot cracking behavior of the new Ni-Co based superalloy prepared by electron beam smelting layered solidification technology

H Cui, Y Tan, L Ning, R Bai, X You, C Cui… - Journal of Materials …, 2024 - Elsevier
The prevention of hot cracking formation is of utmost importance in the production of the new
Ni-Co based superalloys through the utilization of the electron beam smelting layered …

[HTML][HTML] Flow behavior and dynamic recrystallization of hot isostatically pressed EP741NP superalloy

Z Qu, P Zhang, S Liang, Y Lai, J Wang, J Fan… - Journal of Materials …, 2022 - Elsevier
Flow behavior and dynamic recrystallization of the hot isostatically pressed superalloy
EP741NP has been investigated. The isothermal compression tests at a moderate strain rate …

Identifying critical defect sizes from pore clusters in nickel-based superalloys using automated analysis and casting simulation

NP Bellomo, I Öztürk, M Günzel, R Reed… - … Materials Transactions A, 2023 - Springer
Porosity can form during investment casting as a result of the solidification conditions.
Significant porosity can result in agglomerations (pore clusters) which are a primary crack …

[HTML][HTML] In-situ observation of the incipient melting of borides and its effect on the hot-workability of Ni-based superalloys

B Schulz, T Leitner, S Primig - Journal of Alloys and Compounds, 2023 - Elsevier
The excellent creep properties of advanced wrought Ni-based superalloys are achieved by
adding grain boundary strengthening elements such as B and C. Their low solubility in the γ …

Study on the Microstructure and Mechanical Properties of Non-Equimolar NiCoFeAlTi High Entropy Alloy Doped with Trace Elements

C Wu, S Zhang, J Han, C Zhang, F Kong - Metals, 2023 - mdpi.com
The method of improving the microstructure and thus the properties of alloys by adjusting
their composition has been widely used in the study of high entropy alloys (HEAs). However …

Effects of Zirconium Additions on the Microstructure and Stress-Rupture Properties in Polycrystalline Ni-Based Superalloys

Y Zhou, Y Cui, B Wang, J Liang, S Li… - … Symposium on Superalloys, 2024 - Springer
In the present work, comprehensive investigations were conducted to examine the
distribution behavior of the minor alloying element Zr, its impact on microstructural evolution …