Change in elastic properties of eutectic alloys under conditions of superplastic deformation

Korshak, V. F.; Shapovalov, Yu. A.; Mateychenko, P.V.

doi:10.1007/s10853-018-2163-1

Cited by 1 publication

(1 citation statement)

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“…The Young's modulus remains unchanged for both the hypoeutectic

x_{0.25}^{N = 30}

(~145 ± 2 GPa) and hypereutectic

x_{0.80}^{N = 30}

alloys (~144 ± 2 GPa) after severe straining. Such variation in the Young's modulus E with severe straining might have different origins and may be caused primarily by phase transition or phase formation, 21–25 displacive deformation, 26 increasing defect density via formation of non‐equilibrium grain boundaries/lamellae boundaries and the density 27 …”

Section: Resultsmentioning

confidence: 99%

High‐entropy eutectic composites with high strength and low Young's modulus

Maity

Prashanth

Balcı

et al. 2020

Mat Design & Process Comms

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Recent studies on Co–Cr–Fe–Ni–Nbx (x = molar ratio) high‐entropy alloys (HEAs) have revealed that high‐pressure torsion (HPT) induced severe straining improves the load‐bearing ability of eutectic HEAs. Nanoindentation using a Berkovich indenter was employed to investigate the influence of severe straining on the rate‐dependent strength responses in eutectic, proeutectic, and single‐phase Co–Cr–Fe–Ni–Nbx HEAs. The results reveal that the nature of the microstructure evolution after severe straining significantly affects Young's modulus and the yield strength in eutectic Co–Cr–Fe–Ni–Nb0.65. The excellent combination of high strength with lower Young's modulus is crucial for opening new sights in lamellar eutectics for possible application as next‐generation advanced materials.

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“…The Young's modulus remains unchanged for both the hypoeutectic