Abstract
To explore wear-resistant and high-strength materials, Fe50Mn25Co10Cr10Ti5 high entropy alloy with non-equal atomic ratio was designed and prepared. The influence of annealing temperature on wear and mechanical properties was researched. The results show that the as-cast Fe50Mn25Co10Cr10Ti5 alloy presents hypereutectic microstructure which is composed of primary Laves phases and eutectic structure with FCC plus Laves phases. The main wear mechanism is contained fatigue wear, oxidation wear and abrasive wear. The microstructure and wear mechanism of the alloy have not changed significantly after annealing. With the increasing annealing temperature, the hardness and volume wear loss of the alloy present a tendency of going up first and then going down. The friction coefficient has not changed significantly after annealing 900 and 950 °C, while the alloy has increased significantly after annealing 1000 °C. In addition, the mechanical properties of Fe50Mn25Co10Cr10Ti5 alloy have not significantly improved after annealing 900 and 950 °C, while the compression rate and fracture strength have increased from 8.3 to 11.2% and 1493.2 to 1710.2 MPa, respectively, after annealing 1000 °C. The research results could provide experimental references to modify the wear and mechanical performance by using the annealing process.







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Acknowledgments
This research was supported by the National Natural Science Foundation of China (No. 51801029), the Natural Science Foundation of Guangdong Province (Nos. 2022A0505050052 and 2022A1515012591).
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Zhang, Q., Yang, K., Yuan, W. et al. Effect of Annealing Temperature on Microstructure and Mechanical Properties of Fe50Mn25Co10Cr10Ti5 High Entropy Alloy. J. of Materi Eng and Perform 33, 9447–9456 (2024). https://doi.org/10.1007/s11665-023-08646-2
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DOI: https://doi.org/10.1007/s11665-023-08646-2