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Title
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Unraveling the effect of Nb content on the microstructure and electrochemical performance of cost-effective [FeNi]75 −xCr15Mn10Nbx (x = 0, 5, 10 at%) high-entropy alloys
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Type
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JournalPaper
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Keywords
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Cost-effective high-entropy alloyMicrostructureCorrosion resistance
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Abstract
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Herein, the effect of Nb content on the microstructure and electrochemical performance of cost-effective [FeNi]75−xCr15Mn10Nbx (x = 0, 5, 10 at%) high-entropy alloys (HEAs) in a 0.5 M H2SO4 environment was investigated. Upon the introduction of Nb into the [FeNi]75Cr15Mn10 alloy, the microstructure changed from a single face-centered cubic (FCC) solid solution to the dual-phase structures with FCC and [FeNiNb]-rich dendrites ([FeNi]70Cr15Mn10Nb5 and [FeNi]65Cr15Mn10Nb10 alloys). Also, the increase in Nb concentration leads to an increase in the [FeNiNb]-rich phase that ensures a greater formation of a stable and thicker passive oxide film. The findings emphasize the introducing Nb content was an effective strategy for improving the corrosion resistance of the cost-effective FeNiCrMn HEAs.
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Researchers
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Kseniya Rybalchenko (Not In First Six Researchers), Evgeny Trofimov (Not In First Six Researchers), Yong-Cheng Lin (Not In First Six Researchers), Artem Okulov (Not In First Six Researchers), Nataliya Shaburova (Fifth Researcher), Dmitry Mikhailov (Fourth Researcher), Svetlana Pratskova (Third Researcher), Omid Imantalab (Second Researcher), Majid Naseri (First Researcher)
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