[HTML][HTML] Study of pre-precipitated δ phase promoting deformation twinning and recrystallization behavior of Inconel 718 superalloy during hot compression

W Jiang, J Lu, H Guan, M Wang, X Cheng, L Liu, X Liu… - Materials & Design, 2023 - Elsevier
The delta (δ) processing strategy is an efficient heat treatment to refine and homogenize the
grain microstructure of Inconel 718 superalloy (IN718). However, the microstructure …

Evolution of microstructure and δ phase in an aging-treated nickel-based superalloy during hot compression

PZ Yan, DX Wen, Y Liu, L Huang, XL Yang… - Materials …, 2023 - Elsevier
The evolution of microstructure and δ phase (Ni 3 Nb) in an aging-treated nickel-based
superalloy is studied by hot compression tests. Combining with the detailed microstructure …

A novel dynamic recrystallization kinetics model based on particle-stimulated nucleation of the HEXed FGH4113A alloy during hot deformation

JC Zhu, YC Lin, QM Yang, ZJ Chen, M Naseri - Materials Characterization, 2024 - Elsevier
The impact of deformation temperature (1050–1140° C) and strain rate (1–0.001 s− 1) on
the microstructure evolution and dynamic recrystallization (DRX) mechanisms of the HEXed …

On the control of nanoprecipitation in directly aged Alloy 718 via hot deformation parameters

VV Rielli, F Godor, C Gruber, A Stanojevic… - Scripta Materialia, 2023 - Elsevier
Alloy 718 remains the material of choice for critical parts in next-generation aircraft engines.
The direct ageing (DA) route is known to significantly change the final multi-scale …

[HTML][HTML] γʹ and γ ″co-precipitation phenomena in directly aged Alloy 718 with high δ-phase fractions

VV Rielli, E Farabi, F Godor, C Gruber, A Stanojevic… - Materials & Design, 2024 - Elsevier
Co-precipitation of γ′ and γ′′ is the main strengthening mechanism that provides
superior high-temperature strength in directly aged Alloy 718 aerospace parts. Control of …

Microstructure evolution and fracture mechanism of a Fe–Ni–Cr superalloy during various strain rates tensile deformation at elevated temperatures

S Huang, R Sun, L Wang, D Dong, R Duan… - Journal of Materials …, 2023 - Springer
The high-temperature deformation behavior and fracture mechanism of Fe–Ni-Cr superalloy
under high strain rates from 1 to 100 s− 1 were studied by hot tensile experiments at a …

Study on thermal deformation constitutive model of NiCoFeAlCrMo high-entropy alloy with FCC/L12 coherent structure

J Xueyu, C Xin, Z Ge, Z Yunsheng, Z Haoyu… - Materials Today …, 2024 - Elsevier
Due to its multi-principal component characteristics, high-entropy alloys exhibit excellent
comprehensive mechanical properties and become a new generation of engineering …

The roles of P/B-addition in tailoring δ-phase-enhanced grain boundaries in a nickel-based superalloy

J Wu, GJ Liao, CZ Jiang, P Xie, D Jia… - Journal of Alloys and …, 2024 - Elsevier
Phosphorus (P) and boron (B) as microalloying elements can play significant roles in
improving the high-temperature performance of polycrystalline nickel-based superalloys, but …

Enhanced crack propagation resistance after healing treatment by addition of boron in FeNi-base superalloy

CI Kim, JY Lee, WT Kim, ES Park, DH Kim - Materials Science and …, 2024 - Elsevier
The objective of the present study was to investigate whether the crack propagation
resistance of boron-containing FeNi-based superalloy could be enhanced by healing …

Investigation on Mechanism of Microstructure Evolution during Multi-Process Hot Forming of GH4169 Superalloy Forging

MS Chen, HW Cai, YC Lin, GQ Wang, HB Li, A Liu… - Materials, 2024 - mdpi.com
Typically, in the manufacturing of GH4169 superalloy forgings, the multi-process hot forming
that consists of pre-deformation, heat treatment and final deformation is required. This study …