Coupling effects of temperature and strain rate on the mechanical behavior and microstructure evolution of a powder-plasma-arc additive manufactured high-entropy alloy with multi-heterogeneous microstructures

Wang, Jianjun; Guo, Hongxu; Jiao, Zhiming; Zhao, Dan; Chen, Xizhang; Ma, Shengguo; Zhang, Tuanwei; Liu, Xiaohuan; Sha, Gang; Qiao, Junwei; Brechtl, Jamieson; Liaw, Peter K.; Wang, Zhihua

doi:10.1016/j.actamat.2024.120147

Acta Materialia

2024

DOI: 10.1016/j.actamat.2024.120147

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Coupling effects of temperature and strain rate on the mechanical behavior and microstructure evolution of a powder-plasma-arc additive manufactured high-entropy alloy with multi-heterogeneous microstructures

Jianjun Wang,

Hongxu Guo,

Zhiming Jiao

et al.

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Cited by 7 publications

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Synthesis Strategies for High Entropy Nanoparticles

Yang,

He,

Chai

et al. 2024

Advanced Materials

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Nanoparticles (NPs) of high entropy materials (HEMs) have attracted significant attention due to their versatility and wide range of applications. HEM NPs can be synthesized by fragmenting bulk HEMs or disintegrating and recrystallizing them. Alternatively, directly producing HEMs in NP form from atomic/ionic/molecular precursors presents a significant challenge. A widely adopted strategy involves thermodynamically driving HEM NP formation by leveraging the entropic contribution but incorporating strategies to limit NP growth at the elevated temperatures used for maximizing entropy. A second approach is to kinetically drive HEM NP formation by promoting rapid reactions of homogeneous reactant mixtures or using highly diluted precursor dissolutions. Additionally, experimental evidence suggests that enthalpy plays a significant role in driving HEM NP formation processes at moderate temperatures, with the high energy cost of generating additional surfaces and interfaces at the nanoscale stabilizing the HEM phase. This review critically assesses the various synthesis strategies developed for HEM NP preparation, highlighting key illustrative examples and offering insights into the underlying formation mechanisms. Such insights are critical for fine‐tuning experimental conditions to achieve specific outcomes, ultimately enabling the effective synthesis of optimized generations of these advanced materials for both current and emerging applications across various scientific and technological fields.

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Synthesis Strategies for High Entropy Nanoparticles

Yang,

He,

Chai

et al. 2024

Advanced Materials

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Enhanced accident tolerance properties of AlCrCuFeMoNbx high entropy coating for nuclear fuel cladding

Zhu,

Tao,

et al. 2025

Journal of Alloys and Compounds

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An excellent combination of strength and ductility via hierarchical precipitation structures in Co-free medium-entropy alloys

Zhang,

Ma,

Liu

et al. 2024

Journal of Materials Research and Technology

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Coupling effects of temperature and strain rate on the mechanical behavior and microstructure evolution of a powder-plasma-arc additive manufactured high-entropy alloy with multi-heterogeneous microstructures

Cited by 7 publications

References 54 publications

Synthesis Strategies for High Entropy Nanoparticles

Synthesis Strategies for High Entropy Nanoparticles

Enhanced accident tolerance properties of AlCrCuFeMoNbx high entropy coating for nuclear fuel cladding

An excellent combination of strength and ductility via hierarchical precipitation structures in Co-free medium-entropy alloys

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