Composition of Intermetallic Phases in High-Entropy Alloys: Compositional Inheritance of High-Entropy Sigma Phases from Binary Counterparts

Tsai, Ruei-Chi; Fan, An-Chen; Huang, Wen-Fei; Shi, Yu-Wen; Miracle, Daniel B.; Lai, Wen-Yi; Tsai, Ming-Hung

doi:10.1007/s44210-023-00027-7

Cited by 1 publication

(1 citation statement)

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“…However, single-phase FCC HEAs suffer from insufficient strength and their properties can be further optimized. Numerous studies have shown that an effective way to improve the properties of HEAs is through alloying by additional elements [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Hot Deformation Characteristics and Microstructure Evolution of CoCrFeNiZr0.3 Hypoeutectic High-Entropy Alloy

Lyu,

Yuan,

Wang

et al. 2024

Metals

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CoCrFeNiZr0.3 is a two-phase coexisting (Laves + FCC) high-entropy alloy with high strength, excellent corrosion resistance, and thermal stability. However, the inhomogeneous distribution of the eutectic structure among the dendrites has a detrimental effect on the coordinated deformation of the material. The current study shows that the grain size, weave structure, and second phase distribution of high-entropy alloys can be significantly changed by thermal deformation, which affects the mechanical and physical properties, as well as the chemical stability of the alloys. In this study, the thermal deformation behavior of CoCrFeNiZr0.3 biphasic hypoeutectic high-entropy alloy was investigated using a Gleeble-3500 thermal simulation tester under the conditions of deformation temperature of 950–1100 °C and deformation rate of 0.001–1 s−1. The results show that CoCrFeNiZr0.3 high-entropy alloy has higher deformation activation energy, which means its deformation resistance is larger. In addition, the microstructure with finer grain size and uniform distribution of Laves phase can be obtained by EBSD analysis after compression at 1000 °C and 0.01 s−1.

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Section: Introductionmentioning

confidence: 99%