[HTML][HTML] The overview of the formation mechanisms of topologically close-packed phases in Ni-based single crystal superalloys

Y Cheng, X Zhao, W Xia, Q Yue, Y Gu, Z Zhang - Materials & Design, 2024 - Elsevier
The nucleation and growth of topologically close-packed (TCP) phases in Ni-based single
crystal superalloys (SCs) are controlled by composition, temperature, time, interface …

TCP phases growth and crack initiation and propagation in nickel-based single crystal superalloys containing Re

Z Zhang, Z Yue - Journal of Alloys and Compounds, 2018 - Elsevier
Based on crystal slip theory, the rafting of γ′ precipitate phases, the atomic diffusion of Re,
the growth mechanism of topologically close-packed (TCP) phases and the microcrack …

Promotion of topologically close-packed phases in a Ru-containing Ni-based superalloy

S Lee, J Do, K Jang, H Jun, Y Park, PP Choi - Scripta Materialia, 2023 - Elsevier
We report on the effects of Ru addition on the formation of topologically close-packed (TCP)
phases in a Ni-based superalloy during high-temperature exposure. The Ru addition …

[HTML][HTML] Microstructure and tensile behavior of nickel-based single crystal superalloys with different Re contents

Z Shang, H Niu, X Wei, D Song, J Zou, G Liu… - Journal of Materials …, 2022 - Elsevier
To expand the selection range of materials for blades in gas turbines, new single crystal
superalloys with different Re contents were developed and the microstructures, high …

Phase evolution and crystallography of precipitates during decomposition of new “tungsten-free” Co (Ni)–Mo–Al–Nb γ–γ′ superalloys at elevated temperatures

SK Makineni, B Nithin, D Palanisamy… - Journal of materials …, 2016 - Springer
This article reports the microstructural stability and consequent phase decomposition
including the appearance of topologically close-packed (TCP) phases at high temperature of …

Structural evolution of topologically closed packed phase in a Ni-based single crystal superalloy

H Long, S Mao, Y Liu, H Yang, H Wei, Q Deng, Y Chen… - Acta Materialia, 2020 - Elsevier
This work investigates the evolution of the crystal structure of the topologically closed
packed orthorhombic P phase precipitate in a Re-containing Ni-based single crystal …

Precipitation behavior of sigma phase and its influence on mechanical properties of a Ni-Fe based alloy

C Wang, Y Wu, YA Guo, J Guo, L Zhou - Journal of Alloys and Compounds, 2019 - Elsevier
Precipitation behavior of sigma (σ) phase of a Ni-Fe based alloy, considered as boiler
materials in advanced ultra-supercritical (A-USC) coal-fired power plants, was investigated …

The role of nano-sized intergranular phases on nickel alloy 725 brittle failure

MS Hazarabedian, M Iannuzzi - npj Materials Degradation, 2021 - nature.com
Although precipitation-hardened nickel alloys, such as Alloy 725, are extensively used in the
most aggressive oil and gas production conditions given their a priori superior …

[HTML][HTML] Effect of Ru on the precipitation of the TCP phase from the γ-γʹ microstructural degradation analysis

Y Cui, M Sun, L Wang, H Fan, J Zhao, H Long… - Journal of Materials …, 2024 - Elsevier
This work investigates the effect of Ru on the precipitation of the topologically close-packed
(TCP) phase from the γ-γʹ microstructural degradation analysis. The addition of Ru is found …

Effects of tensile/compressive creeps on microstructure evolution of nickel-based single crystal superalloys

Z Zhang, Z Wen, Z Yue - Journal of Alloys and Compounds, 2021 - Elsevier
The microstructure evolution and failure mechanism of nickel-based single crystal DD9
under tensile and compressive creeps at 1100° C and 140 MPa were studied. N-type rafting …