[HTML][HTML] Exploring the Impact of Configurational Entropy on the Design and Development of CoNi-Based Superalloys for Sustainable Applications

A Mohammadzadeh, A Heidarzadeh, H Becker… - Journal of Alloys and …, 2023 - Elsevier
A comprehensive literature review on recently rediscovered Co-and/or CoNi-based
superalloys, strengthened by the γ'phase, revealed a relationship between the …

L12-strengthened multicomponent Co-Al-Nb-based alloys with high strength and matrix-confined stacking-fault-mediated plasticity

BX Cao, WW Xu, CY Yu, SW Wu, HJ Kong, ZY Ding… - Acta Materialia, 2022 - Elsevier
This study presents the alloy development of a new class of L1 2-strengthened Co-Al-Nb-
based alloys with high γ′-solvus temperatures together with superb strengths at both …

Alloying effects and effective alloy design of high-Cr CoNi-based superalloys via a high-throughput experiments and machine learning framework

X Zhuang, S Antonov, W Li, S Lu, L Li, Q Feng - Acta Materialia, 2023 - Elsevier
The discovery of a stable γ/γ'microstructure in Co-Al-W-based alloys brought forth
possibilities for Co-based superalloys as potential alternatives to Ni-based superalloys in …

Effect of alloying elements on the coarsening rate of γʹ precipitates in multi-component CoNi-based superalloys with high Cr content

X Zhuang, S Antonov, L Li, Q Feng - Scripta Materialia, 2021 - Elsevier
The γʹ coarsening behavior during long-term aging at 850° C of multi-component CoNi-
based superalloys with high (14 at.%) Cr content were investigated, and the effects of W, Mo …

High-strength Co–Al–V-base superalloys strengthened by γ′-Co3 (Al, V) with high solvus temperature

Y Chen, C Wang, J Ruan, T Omori, R Kainuma… - Acta Materialia, 2019 - Elsevier
The γ/γ′ two-phase Co–Al–V-base superalloys are investigated in detail, including their
phase equilibria, alloying effects, and alloy design. The experimental proof of the existence …

Evolution analysis of γ'precipitate coarsening in Co-based superalloys using kinetic theory and machine learning

P Liu, H Huang, X Jiang, Y Zhang, T Omori, T Lookman… - Acta Materialia, 2022 - Elsevier
The coarsening of γ'precipitates in superalloys involves multiple factors and impacts the
performance of mechanical properties, such as strength and creep resistance. Classical …

Development of low-density γ/γ′ Co–Al–Ta-based superalloys with high solvus temperature

Y Chen, C Wang, J Ruan, S Yang, T Omori, R Kainuma… - Acta Materialia, 2020 - Elsevier
The present paper reports the development of W-, Mo-, and V-free and Ni-and Cr-containing
Co–Al–Ta-based superalloys. In particular, the presence of a metastable L1 2-γ′ phase is …

US Cobalt: a cycle of diverse and important uses

TE Graedel, A Miatto - Resources, Conservation and Recycling, 2022 - Elsevier
We present a material flow and stock analysis for cobalt use and waste in the United States
from 1996 to 2020, including the separation of cobalt flows into six product groups and five …

Additively manufactured heterogeneous precipitation-strengthened high-entropy alloys with high strength and ductility

B Xiao, R Chen, J Zhang, J Zhang, Y Zhou, J Ju… - Additive …, 2023 - Elsevier
Heterogeneous-structured (HS) materials have drawn particular attention due to their
extraordinary strength-ductility combinations. Benefiting from the large thermal gradient and …

Effect of Ti/Nb/Ta addition on the γ/γ'coherent microstructure in low-density and high-strength Co-Al-W-Mo-based superalloys

J Li, J Zhang, Z Li, Q Wang, C Dong, F Xu, L Sun… - Journal of Materials …, 2024 - Elsevier
Coherent precipitation of cuboidal γ'-Co 3 (Al, W) nanoparticles in face-centered-cubic
(FCC)-γ matrix is of great significance for improving high-temperature mechanical properties …