New strategy to improve the overall performance of single-crystal superalloys by designing a bimodal γ′ precipitation microstructure

W Xia, X Zhao, J Wang, Q Yue, Y Cheng, L Kong… - Acta Materialia, 2023 - Elsevier
Advanced single-crystal superalloys, developed to improve the high temperature capability
of gas turbines, often underperform in low-temperature conditions. This limitation …

Hydrogen-enhanced decohesion mechanism of the Ni-Ni3X interfaces in precipitation-hardened Ni-based alloys

Q Tan, S He, X Chen, Y Liu, OI Gorbatov… - Journal of Alloys and …, 2023 - Elsevier
Ni and its alloys are susceptible to hydrogen embrittlement. In this study, we investigate the
phenomenon of hydrogen-enhanced decohesion at inter-phase interfaces in precipitation …

[HTML][HTML] The strengthening effects and mechanisms of alloying elements on interfaces for multiphase Ni-based superalloys: A first-principles study

Y Chen, H Yu, Y Chen, H Di, W Xu - Journal of Materials Research and …, 2023 - Elsevier
The mechanical properties and thermal stability of multiphase Ni-based superalloys are
highly determined by the interfaces between the strengthening precipitations and the matrix …

An advanced approach to improve the high-temperature property for Ni-based superalloys: Interface segregation manipulation

J Zhang, F Lu, T Huang, R Li, G Zhang, L Liu - Materials Science and …, 2023 - Elsevier
In response to the requirements for the long-term service reliability of Ni-based superalloys,
the correlations between the microstructure and creep property are investigated in present …

[HTML][HTML] The effect of alloying elements in Ti-5Mo-5V-8Cr-3Al alloy on growth kinetics of TiB whiskers in boride layer

A Yang, Y Wu, Y Duan, M Peng, S Zheng, M Li, J Yu - Materials & Design, 2023 - Elsevier
As one of the important ways to improve surface properties of Ti alloys, the boride layer
prepared by the pack boriding is closely related to the growth and morphology of TiB …

First-principles study of Re-W interactions and their effects on the mechanical properties of γ/γ′ interface in Ni-based single-crystal alloys

S He, Q Tan, X Chen, Y Liu, OI Gorbatov… - Materials Today …, 2023 - Elsevier
The distribution of solutes and their interactions play a crucial role in determining the
mechanical properties of the γ/γ′ interface in Ni-based single-crystal alloys. In this study …

Tensile properties and deformation mechanisms of a solution treated Ni–Fe-based alloy at high temperatures

K Xu, H Jiang, JB Yan, P Zhang, P Liu, GH Cao… - Materials Science and …, 2023 - Elsevier
This study investigated the high-temperature tensile properties and deformation
mechanisms of a solution treated Ni–Fe-based alloy ranging from 600 to 750° C. The …

Atomic-scale unveiling of strengthening in interstitial solid soluted Nb-rich TiAl alloys

H Xue, Y Liang, SL Shang, ZK Liu, J Lin - Journal of Alloys and Compounds, 2022 - Elsevier
Understanding interaction between interstitial elements and matrix at the bulk phases and
phase interfaces is crucial in alloy design. In this study, using first-principles density …

New insights of the microcrack initiation induced by Mo addition in Ni-based single crystal superalloys during creep at 900° C

Y Cheng, X Zhao, L Qiao, Q Yue, J Wang, Q Pan… - Materials Science and …, 2024 - Elsevier
Mo has received much attention in Ni-based single crystal superalloys as a main
strengthening element at elevated temperatures above 1000° C. However, the effects of Mo …

First-principles investigation on stability and electronic structure of Sc-doped θ′/Al interface in Al− Cu alloys

D Zhang, W Jiong, K Yi, ZOU You, DU Yong - Transactions of Nonferrous …, 2021 - Elsevier
The properties of Sc-doped θ′(Al 2 Cu)/Al interface in Al− Cu alloys were investigated by
first-principles calculations. Sc-doped semi-coherent and coherent θ′(Al 2 Cu)/Al interfaces …