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Effect of Zr Addition on Microstructure and Properties of FeCrNiMnCoZr x and Al0.5FeCrNiMnCoZr x High Entropy Alloys

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Abstract

In this study, the effect of Zr addition on phase formation, microstructure, and hardness of FeCrNiMnCoZr x and Al0.5FeCrNiMnCoZr x were investigated. High entropy alloys (HEA) were synthesized using arc melting technique in argon (Ar) atmosphere (x = 0, 0.1, 0.2, 0.3). Ingots were homogenized for 24 h at 900 °C in Ar atmosphere. Phase formation, microstructure and hardness of HEAs were investigated using field emission scanning electron microscope, X-ray diffraction and Vickers microhardness tester. Electron micrographs of HEAs showed majorly dendritic(DR) and interdendritic(ID) phases. For both FeCrNiMnCoZr x and Al0.5FeCrNiMnCoZr x alloys, amount of ID phases is seen to increase with increased Zr content. Aluminium containing HEAs showed fine needle-shaped precipitates dispersed throughout the matrix phase. XRD results confirmed the presence of mixed FCC/BCC phases in FeCrNiMnCoZr x alloys and BCC as majority phase in Al0.5FeCrNiMnCoZr x alloys. As the Zr content increased, hardness of HEA increased.

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Acknowledgments

The authors would like to thank the Universiti Teknologi Mara for financially supporting this research under Grant No. 600-RMI/DANA 5/3/RIF (324/2012).

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Authors and Affiliations

  1. Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Malaysia

    Siti Sarah Mohd Pauzi, Widyani Darham, R. Ramli, M. K. Harun & Mahesh Kumar Talari

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  1. Siti Sarah Mohd Pauzi
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  2. Widyani Darham
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  3. R. Ramli
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  4. M. K. Harun
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  5. Mahesh Kumar Talari
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Correspondence to Mahesh Kumar Talari.

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Pauzi, S.S.M., Darham, W., Ramli, R. et al. Effect of Zr Addition on Microstructure and Properties of FeCrNiMnCoZr x and Al0.5FeCrNiMnCoZr x High Entropy Alloys. Trans Indian Inst Met 66, 305–308 (2013). https://doi.org/10.1007/s12666-013-0264-8

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  • DOI: https://doi.org/10.1007/s12666-013-0264-8

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