Metastable states and physical properties of Co-Cr-Fe-Mn-Ni high-entropy alloy thin films

Kushnerov, O. I.; Ryabtsev, S. I.; Башев, В. Ф.

doi:10.1080/15421406.2022.2073043

Cited by 5 publications

(2 citation statements)

References 30 publications

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“…One of the common methods to improve the chemical, physical, mechanical, and other properties of metals and alloys is rapid solidification. This method involves cooling the melt at rates above 10 4 K/s, which results in a wide range of metastable structural states in the alloys, including nanocrystalline and amorphous, with unique property combinations [7][8][9][10]. Hence, rapid solidification is a promising method to obtain high-entropy alloys with superior characteristics.…”

Section: Introductionmentioning

confidence: 99%

Structure and Properties of Melt-Quenched Al<sub>4</sub>CoCrCuFeNi High-Entropy Alloy

Kushnerov,

Bashev,

Ryabtsev

2024

DDF

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The structure and mechanical properties of a multicomponent high-entropy Al4CoCrCuFeNi alloy in the as-cast and melt-quenched states were investigated. The alloy composition was analyzed based on the literature criteria for predicting the phase formation in high-entropy alloys, which considered the entropy and enthalpy of mixing, valence electron concentration as well as the atomic size difference of the components. The alloy films were synthesized by quenching from the melt using a splat-quenching technique. The cooling rate of the films was estimated to be ~ 106 K/s based on the film thickness. The X-ray diffraction analysis revealed that both as-cast and melt-quenched Al4CoCrCuFeNi alloy samples had an ordered B2 phase in their structure. The microhardness of the as-cast alloy was 6500 MPa, while the microhardness of the melt-quenched film was significantly higher and reached 9400 MPa.

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Section: Introductionmentioning

confidence: 99%

Structure and Properties of Melt-Quenched Al<sub>4</sub>CoCrCuFeNi High-Entropy Alloy

Kushnerov,

Bashev,

Ryabtsev

2024

DDF

Self Cite

View full text Add to dashboard Cite

show abstract

“…One of the common methods to improve the chemical, physical, mechanical, and other properties of metals and alloys is rapid solidification. This method involves cooling the melt at rates above 10 4 K/s, which results in a wide range of metastable structural states in the alloys, including nanocrystalline and amorphous, with unique property combinations [7][8][9]. Hence, rapid solidification is a promising method to obtain HEAs with superior characteristics.…”

Section: Introductionmentioning

confidence: 99%

The influence of cooling rate on the structure and mechanical properties of Al4CoCrCuFeNi multicomponent alloy

Kushnerov,

Bashev,

Ryabtsev

2023

J. Phys. Electron.

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The present study focused on examining the composition, structure, and mechanical properties of an Al4CoCrCuFeNi multicomponent high-entropy alloy. Two states of the alloy, namely as-cast and melt-quenched, were investigated. The composition of the alloy was determined based on established criteria found in literature, which consider factors such as entropy, enthalpy of mixing, valence electron concentration, and atomic size difference of the components. To synthesize the alloy films, a splat-quenching technique was employed, where the films were rapidly cooled from the molten state. The estimated cooling rate of the films was approximately 106 K/s, calculated based on the film thickness. X-ray diffraction analysis was conducted on both the as-cast and melt-quenched Al4CoCrCuFeNi alloy samples, revealing that they exhibited an ordered B2 phase in their structure. The microhardness measurementswere carried out to evaluate the mechanical properties of the alloy. The as-cast alloy displayed a microhardness of 6500 MPa, while the melt-quenched film exhibited a significantly higher microhardness, reaching 9400 MPa.

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Study on magnetic properties and microstructure of Fe0.18Co0.36Ni0.21Al0.10Cr0.15 high entropy alloy thin films

Luo

Zhao

et al. 2023

Journal of Alloys and Compounds

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Metastable states and physical properties of Co-Cr-Fe-Mn-Ni high-entropy alloy thin films

Cited by 5 publications

References 30 publications

Structure and Properties of Melt-Quenched Al<sub>4</sub>CoCrCuFeNi High-Entropy Alloy

Structure and Properties of Melt-Quenched Al<sub>4</sub>CoCrCuFeNi High-Entropy Alloy

The influence of cooling rate on the structure and mechanical properties of Al4CoCrCuFeNi multicomponent alloy

Study on magnetic properties and microstructure of Fe0.18Co0.36Ni0.21Al0.10Cr0.15 high entropy alloy thin films

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