A review of composition evolution in Ni-based single crystal superalloys

W Xia, X Zhao, L Yue, Z Zhang - Journal of Materials Science & Technology, 2020 - Elsevier
Due to the outstanding creep performance, nickel-based single crystal superalloys (Ni-SXs)
are extensively applied in modern aero-engine and industrial gas turbine. Apart from the …

Superior strength-ductility synergy and strain hardenability of Al/Ta co-doped NiCoCr twinned medium entropy alloy for cryogenic applications

DD Zhang, JY Zhang, J Kuang, G Liu, J Sun - Acta Materialia, 2021 - Elsevier
Metallic materials with outstanding cryogenic mechanical properties are highly demanded
for cryogenic engineering applications. Here we developed a novel (NiCoCr) 92 Al 6 Ta 2 …

Effects of Ta addition on the microstructures and mechanical properties of CoCrFeNi high entropy alloy

H Jiang, K Han, D Qiao, Y Lu, Z Cao, T Li - Materials Chemistry and …, 2018 - Elsevier
In this study, CoCrFeNiTa x (x value in molar ratio, x= 0, 0.1, 0.2, 0.3, 0.4, 0.5, and 0.75) high
entropy alloys were prepared to investigate the alloying effects of Ta on the microstructures …

Achieving excellent strength-ductility synergy in twinned NiCoCr medium-entropy alloy via Al/Ta co-doping

DD Zhang, H Wang, JY Zhang, H Xue, G Liu… - Journal of Materials …, 2021 - Elsevier
Alloying is an effective strategy to tailor microstructure and mechanical properties of metallic
materials to overcome the strength-ductility trade-off dilemma. In this work, we combined a …

Role of alloy composition on micro-cracking mechanisms in additively manufactured Ni-based superalloys

A Chakraborty, W Muhammad, JP Masse… - Acta Materialia, 2023 - Elsevier
Inherent micro-cracking mechanisms in two contrasting high-gamma-prime (high-γ') Ni-
based superalloys processed by laser powder bed fusion (LPBF) were investigated. RENÉ …

Effects of Ta microalloying on the microstructure and mechanical properties of L12-strengthened CoCrFeNi–AlTi high-entropy alloys

W Qi, X Yang, W Wang, T Peng, Y Zhang, Y Li… - Materials Science and …, 2023 - Elsevier
In this work, the effects of Ta element microalloying on the microstructure and mechanical
properties of CoCrFeNi–AlTi precipitation-strengthened high-entropy alloys were …

A strong and ductile NiCoCr-based medium-entropy alloy strengthened by coherent nanoparticles with superb thermal-stability

DD Zhang, J Kuang, H Xue, JY Zhang, G Liu… - Journal of Materials …, 2023 - Elsevier
In this work, we designed a novel NiCoCr-based medium-entropy alloy (MEA) strengthened
by coherent L1 2-nanoparticles, ie,(NiCoCr) 92 Al 6 Ta 2 (at.%). The strengthening and …

Enhancing microstructural stability and creep properties by Ta addition in Ni-based single crystal superalloys

Y Gao, J Dong, L Wang, P Liu, J Zhang… - Materials Science and …, 2024 - Elsevier
To investigate influences of Ta content on microstructural stability during thermal exposure
at 900° C (up to 3000 h) and creep properties at 980° C/163 MPa in Ni-based SX superalloy …

A correlative multidimensional study of γ′ precipitates with Ta addition in Re-containing Ni-based single crystal superalloys

J Zhang, T Huang, K Cao, J Chen, H Zong… - Journal of Materials …, 2021 - Elsevier
The microstructural evolution in Re-containing Ni-based single crystal superalloys with
different Tantalum (Ta) content (2Ta, 5Ta and 8Ta in wt%) was investigated. Ta addition …

Effect of tantalum on the microstructure stability of PM Ni-base superalloys

JM Bai, PY Xing, HP Zhang, XK Li, JT Liu, J Jia… - Materials …, 2021 - Elsevier
The effect of Ta on the microstructure stability of powder metallurgy (PM) Ni-base superalloy
was examined at standard heat treatment and after long-term thermal exposure. The results …