Fabrication and characterization of FeCoNiCuCr nano structured high entropy alloy using wet mechanical alloying

Document Type : Original Article

Authors

Faculty of Materials Engineering, KN Toosi University of Technology, Tehran, Iran

Abstract

Some modern alloys, such as high entropy alloys (HEAs), are rapidly emerging due to their wide range of properties and applications. HEAs can be prepared from many metallurgical operations, but mechanical alloying is one of the simplest, most economical, and popular due to the increase in solid solubility, nanocrystalline structure, greater homogeneity, and performing the process at room temperature. The most suitable methods are considered. The method of synthesis of this category of alloys in this research is mechanical alloying, and using thermodynamic relations, the product of mechanical alloying has been validated. Milled products and solid solution phases, identified and by scanning electron microscope, the distribution of elements at different points is shown by MAP images. Also, XRD analysis in all stages of mechanical alloying up to 50 hours using liquid process controller shows that alloying is continuous in 20 hours. The crystal size was calculated using Scherer's relationship and the measured lattice strain was estimated to be 5 nm and 1.9%, respectively.

Keywords

References

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Iranian Journal of Manufacturing Engineering
Volume 9, Issue 6
September 2022
Pages 1-10

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