Temperature Dependent Yield Strength, Strain Hardening and Failure of the CoCrFeNiMnVx High Entropy Alloys

Aleksey V. Podolskiy; Elena D. Tabachnikova; Marina O. Laktionova; Natalia A. Bereznaia; Mikhail A. Tikhonovsky; Aleksandr S. Tortika; Jozef Miškuf; Kornel Csach; Alena Juríková; Maria Hurakova

doi:10.4028/www.scientific.net/MSF.891.438

Paper Titles

Metallography Evaluation of Cast and Wrought Ni-Base Superalloys
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Long-Term Gamma Prime Phase Stability after Various Heat Treatment Conditions with Temperature Dropping during Solution Treatment in Cast Nickel Base Superalloy, Grade Inconel-738
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Effect of Long-Term Aging on Microstructural Restoration in Cast Nickel Base Superalloy, GTD-111
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Effect of Precipitation Aging Temperatures on Reheat Treated Microstructures and its Phase Stability after Long-Term Exposure in Cast Nickel Base Superalloy, Grade Inconel 738
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Temperature Dependent Yield Strength, Strain Hardening and Failure of the CoCrFeNiMnV_x High Entropy Alloys
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Effects of Nickel and Chromium Additions on Microstructure of P/M 316L Stainless Steels
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Microstructure and Erosion Resistance of Zirconium Diboride Ceramics Infiltrated by Pure Copper
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Microstructure Evaluation of Ceramic Materials Used in the Generation IV Reactors
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HomeMaterials Science ForumMaterials Science Forum Vol. 891Temperature Dependent Yield Strength, Strain...

Temperature Dependent Yield Strength, Strain Hardening and Failure of the CoCrFeNiMnV_x High Entropy Alloys

Abstract:

Several structural states of the CoCrFeNiMnV_x (x=0, 0.25, 0.5, 0.75) high entropy alloys with different content of the intermetallic σ phase are studied in uniaxial compression in temperature range 4.2-300 K. Peculiarities of strain hardening stages and temperature dependences of the yield strength are registered and analyzed considering dislocation sliding as main deformation mechanism in matrix fcc phase. Influence of σ phase particles, deformation twins and stacking faults on the deformation behavior of the CoCrFeNiMnV_x alloy is discussed.

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Periodical:

Materials Science Forum (Volume 891)

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438-443

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.891.438

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Online since:

March 2017

Authors:

Aleksey V. Podolskiy*, Elena D. Tabachnikova, Marina O. Laktionova, Natalia A. Bereznaia, Mikhail A. Tikhonovsky, Aleksandr S. Tortika, Jozef Miškuf, Kornel Csach, Alena Juríková, Maria Hurakova

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High-Entropy Alloy, Low Temperature, Mechanical Properties

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