Alloying, phases and magnetic behaviour of mechanically alloyed FeNiMnCu-based high entropy alloys

Abstract

In the present work, FeNiMnCuX (X: Co, Cr, Mo, Ti, W) high entropy alloys are successfully fabricated by mechanical alloying. After 15 h of milling, FeNiMnCu and FeNiMnCuCo alloys form a single FCC structure, while other alloys formed an FCC + BCC mixture structure. All alloys contained homogeneous distributions of Fe and Ni, while Cu was segregated. Alloys FeNiMnCuTi and FeNiMnCuW exhibited homogeneous distributions of Mn, whereas others exhibited Mn-rich islands. Except for the FeNiMnCuTi alloy, all alloys exhibited a soft magnetic behaviour. The saturation magnetisation of the base FeNiMnCu alloy was increased by adding Co and decreased by adding Cr, Mo, Ti, and W.

KEYWORDS:

• Mechanical alloying
• high entropy alloys
• phase evaluation
• magnetic properties

Acknowledgment

Financial support by Shahid Chamran University of Ahvaz (Ahvaz, Iran) through grant number SCU.EM1400.322 is gratefully appreciated.

Availability of data and material

The raw/processed data required to reproduce these findings cannot be shared at this time due to legal or ethical reasons.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the Shahid Chamran University of Ahvaz [grant number SCU.EM1400.322].