Prediction of phase stabilities of solid solutions for high entropy alloys

Yin, K.X.; Huang, Z.W.; Wu, B.L.; Zhang, G.J.; Tian, Q.W.; Wang, Y.N.

doi:10.1016/j.actamat.2023.119445

Cited by 7 publications

(2 citation statements)

References 119 publications

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“…This integration facilitates the rapid synthesis and testing of novel alloy compositions, thereby accelerating the pace of materials discovery and innovation. It allows for a more efficient exploration of the vast compositional landscape of HEAs, pinpointing optimal combinations of elements that meet specific performance criteria [45,[110][111][112][113][114].…”

Section: Future Directionsmentioning

confidence: 99%

A Modern Approach to HEAs: From Structure to Properties and Potential Applications

Nartita,

Ionita,

Demetrescu

2024

Crystals

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High-entropy alloys (HEAs) are advanced materials characterized by their unique and complex compositions. Characterized by a mixture of five or more elements in roughly equal atomic ratios, these alloys diverge from traditional alloy formulations that typically focus on one or two principal elements. This innovation has paved the way for subsequent studies that have expanded our understanding of HEAs, highlighting the role of high mixing entropy in stabilizing fewer phases than expected by traditional phase prediction methods like Gibbs’s rule. In this review article, we trace the evolution of HEAs, discussing their synthesis, stability, and the influence of crystallographic structures on their properties. Additionally, we highlight the strength–ductility trade-off in HEAs and explore strategies to overcome this challenge. Moreover, we examine the diverse applications of HEAs in extreme conditions and their promise for future advancements in materials science.

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Section: Future Directionsmentioning

confidence: 99%

A Modern Approach to HEAs: From Structure to Properties and Potential Applications

Nartita,

Ionita,

Demetrescu

2024

Crystals

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“…In terms of the types of intermetallic compounds, within HEAs, there are generally considered to be two distinct types of intermetallic compounds, those with similar lattice structures to the primary matrix (such as B2 or L12 phases) and those with more complex lattice structures (such as Laves and Sigma phases), which can have different formation criteria and impact on the alloy's properties [216]. As such, performing a prediction of the formation of intermetallic compounds within HEAs without considering the nature of the formed compounds deprives the model of relevant information regarding their formation, thus limiting the usefulness of the results.…”

Section: Discussionmentioning

confidence: 99%

Microstructural Characterization and Phase Prediction of High Entropy Alloys using Empirical and Machine Learning Based Methodologies

Mohammadi

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Alloys containing four or more principal alloying elements in near equal atomic percentage, so called High Entropy Alloys (HEA), break down the solvent-solute relationship generally seen in traditional alloys. This creates a vast and unpredictable design space, unfeasible to explore purely experimentally or through computational simulations. This thesis aims to present a newly developed machine learning based phase prediction methodology for HEA alloys, the empirical design and characterization of a Zr-containing HEA system, and a performance comparison of the developed methodology and established empirical method at predicting the impact of Zr on the phase composition with experimental results as a reference. Findings show that the developed phase prediction methodology, which leverages a convolutional neural network, could predict the formation of a secondary BCC solid solution phase within the high entropy alloys caused by the addition Zr and intermetallic compound formation, while the empirical parameters failed to do so.

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Effect of Ti content on microstructure evolution and mechanical properties of FeCoNi-based medium-entropy alloys

Chen,

Zhu,

Wang

et al. 2024

J Mater Sci

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Prediction of phase stabilities of solid solutions for high entropy alloys

Cited by 7 publications

References 119 publications

A Modern Approach to HEAs: From Structure to Properties and Potential Applications

A Modern Approach to HEAs: From Structure to Properties and Potential Applications

Microstructural Characterization and Phase Prediction of High Entropy Alloys using Empirical and Machine Learning Based Methodologies

Effect of Ti content on microstructure evolution and mechanical properties of FeCoNi-based medium-entropy alloys

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