Journal Article10.1080/02670836.2023.2187973
Microstructure and tensile strength of electrodeposited Fe-rich bcc FeCoNi medium-entropy alloys
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TL;DR: In this article , an FeCoNi medium-entropy alloy with a wide range of grain sizes was fabricated by electrodeposition, which had a metastable bcc structure with Fe-36 at.% Co-21 at.%.
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Abstract: Crystal grain refinement in high- and medium-entropy alloys is an effective approach to obtaining good strength as well as ductility. An FeCoNi medium-entropy alloy with a wide range of grain sizes was fabricated by electrodeposition. The alloy had a metastable bcc structure with Fe–36 at.% Co–21 at.% Ni composition and heterogeneous distribution of grain sizes ranging from 20 nm to 15 µm. Moreover, the alloy possessed a tensile strength of 1.2 GPa, and a fracture elongation of 6.3 % without secondary phase. The excellent mechanical properties of the alloy can be attributed to its bcc phase and heterogeneous grain sizes extending to the nanoscale.
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Citations
Review on the preparation methods and strengthening mechanisms of medium-entropy alloys with CoCrNi as the main focus
Hua He,Yuhua Wang,Zichao Xu,Yue Li +3 more
TL;DR: This review summarizes the preparation methods and strengthening mechanisms of Medium-Entropy Alloys (MEAs), with a focus on CoCrNi, highlighting advancements in MEA technology, preparation processes, and enhancement mechanisms for aerospace, automotive, energy, and biomedical applications.
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Effect of rare earth element Y content on microstructure, magnetic properties, and electrochemical properties of the as-annealed FeCoNiAl0.2Yx high-entropy alloys
Shaojie Cui,Sheng Lei,Junpeng Zhang,Zhengwei Xue +3 more
- 23 May 2024
TL;DR: The addition of rare earth element Y to FeCoNiAl0.2Yx high-entropy alloys improves their microstructure, magnetic properties, and electrochemical properties in the annealed state.
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