Magnetic and corrosion properties of Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 high entropy alloy
High Entropy Alloys (HEAs) exhibit exceptional mechanical properties, corrosion resistance, better high temperature stability, and higher electrical resistivity than conventional alloys due to the presence of multiple principal elements. In this study, we synthesized Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
|
| Series: | Journal of Alloys and Metallurgical Systems |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949917825000392 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850103157546287104 |
|---|---|
| author | Priyanka Kumari Shashi Kant Mohapatra U.K. Goutam Rohit R. Shahi |
| author_facet | Priyanka Kumari Shashi Kant Mohapatra U.K. Goutam Rohit R. Shahi |
| author_sort | Priyanka Kumari |
| collection | DOAJ |
| description | High Entropy Alloys (HEAs) exhibit exceptional mechanical properties, corrosion resistance, better high temperature stability, and higher electrical resistivity than conventional alloys due to the presence of multiple principal elements. In this study, we synthesized Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA through the mechanical alloying technique and investigated the effect of Mn addition for Al on the phase formation, magnetic, and corrosion properties. A single fcc phase has formed for Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA. After vacuum annealing at 700 °C for 2 h followed by RT cooling, a slight amount of new σ phase is formed along with the initial fcc phase for Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA. The saturation magnetization and coercivity value is 83 emu/g and 6 Oe for as-synthesized Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA. After annealing at 700 °C, the saturation magnetization significantly increased to 109 emu/g, whereas the value of coercivity remains the same. We also found good corrosion resistance for synthesized Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA in 1 M NaCl solution, and the corrosion rate is found to be 0.028 mm/y. Thus, the found the high value of Ms and extremely low corrosion rate makes the developed Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA a promising soft magnetic material for industrial applications. |
| format | Article |
| id | doaj-art-2103dd87f3614a3297b74ce17ea84beb |
| institution | DOAJ |
| issn | 2949-9178 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Alloys and Metallurgical Systems |
| spelling | doaj-art-2103dd87f3614a3297b74ce17ea84beb2025-08-20T02:39:36ZengElsevierJournal of Alloys and Metallurgical Systems2949-91782025-06-011010018910.1016/j.jalmes.2025.100189Magnetic and corrosion properties of Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 high entropy alloyPriyanka Kumari0Shashi Kant Mohapatra1U.K. Goutam2Rohit R. Shahi3Functional and Energy Materials Research lab, Department of Physics, Central University of South Bihar Gaya, IndiaFunctional and Energy Materials Research lab, Department of Physics, Central University of South Bihar Gaya, IndiaTechnical Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, IndiaFunctional and Energy Materials Research lab, Department of Physics, Central University of South Bihar Gaya, India; Corresponding author.High Entropy Alloys (HEAs) exhibit exceptional mechanical properties, corrosion resistance, better high temperature stability, and higher electrical resistivity than conventional alloys due to the presence of multiple principal elements. In this study, we synthesized Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA through the mechanical alloying technique and investigated the effect of Mn addition for Al on the phase formation, magnetic, and corrosion properties. A single fcc phase has formed for Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA. After vacuum annealing at 700 °C for 2 h followed by RT cooling, a slight amount of new σ phase is formed along with the initial fcc phase for Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA. The saturation magnetization and coercivity value is 83 emu/g and 6 Oe for as-synthesized Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA. After annealing at 700 °C, the saturation magnetization significantly increased to 109 emu/g, whereas the value of coercivity remains the same. We also found good corrosion resistance for synthesized Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA in 1 M NaCl solution, and the corrosion rate is found to be 0.028 mm/y. Thus, the found the high value of Ms and extremely low corrosion rate makes the developed Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA a promising soft magnetic material for industrial applications.http://www.sciencedirect.com/science/article/pii/S2949917825000392High entropy alloyMechanical alloyingAnnealingCorrosion resistanceSoft magnetic material |
| spellingShingle | Priyanka Kumari Shashi Kant Mohapatra U.K. Goutam Rohit R. Shahi Magnetic and corrosion properties of Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 high entropy alloy Journal of Alloys and Metallurgical Systems High entropy alloy Mechanical alloying Annealing Corrosion resistance Soft magnetic material |
| title | Magnetic and corrosion properties of Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 high entropy alloy |
| title_full | Magnetic and corrosion properties of Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 high entropy alloy |
| title_fullStr | Magnetic and corrosion properties of Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 high entropy alloy |
| title_full_unstemmed | Magnetic and corrosion properties of Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 high entropy alloy |
| title_short | Magnetic and corrosion properties of Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 high entropy alloy |
| title_sort | magnetic and corrosion properties of co35cr5fe10ni30ti5al7 5mn7 5 high entropy alloy |
| topic | High entropy alloy Mechanical alloying Annealing Corrosion resistance Soft magnetic material |
| url | http://www.sciencedirect.com/science/article/pii/S2949917825000392 |
| work_keys_str_mv | AT priyankakumari magneticandcorrosionpropertiesofco35cr5fe10ni30ti5al75mn75highentropyalloy AT shashikantmohapatra magneticandcorrosionpropertiesofco35cr5fe10ni30ti5al75mn75highentropyalloy AT ukgoutam magneticandcorrosionpropertiesofco35cr5fe10ni30ti5al75mn75highentropyalloy AT rohitrshahi magneticandcorrosionpropertiesofco35cr5fe10ni30ti5al75mn75highentropyalloy |