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Title
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Exceptional electrochemical performance through microstructure engineering in cost-effective Fe30Ni25Cr25Mo10Al10 high-entropy alloy via cyclic closed-die forging technique
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Type
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JournalPaper
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Keywords
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Cost-effective high-entropy alloys; Cyclic closed-die forging; Microstructure characterization; Electrochemical behavior.
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Abstract
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In this study, the effect of grain refinement on the electrochemical behavior of the cost-effective Fe30Ni25Cr25Mo10Al10 high-entropy alloy heavily deformed through cyclic closed-die forging (CCDF) was investigated in a 0.5 M H2SO4 solution. The as-homogenized Fe30Ni25Cr25Mo10Al10 alloy exhibited a two-phase microstructure of the [CrMoFe]-rich dendrites with dual size distributed in a nearly homogenous face-centered cubic (FCC) high-entropy matrix. It was observed that the CCDF technique was a promising process for exhibiting an equiaxed morphology in this alloy, accompanied by a high fraction of nanograin regions, and the grain size distribution was relatively uniform. Additionally, the electrochemical measurements confirmed that the electrochemical behavior of the Fe30Ni25Cr25Mo10Al10 alloy was improved by implementing the CCDF technique due to the improved surface conditions promoting the formation of oxide films through higher homogeneity facilitation.
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Researchers
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Evgeny Trofimov (Not In First Six Researchers), Alena Myasnikova (Not In First Six Researchers), Nataliya Shaburova (Not In First Six Researchers), Milena Efimova (Not In First Six Researchers), Dmitry Mikhailov (Fifth Researcher), Davood Gholami (Fourth Researcher), Svetlana Pratskova (Third Researcher), Omid Imantalab (Second Researcher), Majid Naseri (First Researcher)
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