Microstructural evolution and wear performance of Ti662 alloy reinforced with FeCoCrCuSi high entropy alloy using microwave sintering

High Entropy alloy (HEA) is a potential reinforcement material to enhance the strength and wear behaviour of base materials through refined microstructure. In the present work, Ti6Al6V2Sn (Ti662 alloy) is reinforced with a ball-milled equimolar FeCoCrCuSi HEA by the Microwave Sintering (MS) process....

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Main Authors: S. Ragunath, N. Radhika, Adeolu Adesoji Adediran
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Journal of Materials Research and Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S223878542403014X
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author S. Ragunath
N. Radhika
Adeolu Adesoji Adediran
author_facet S. Ragunath
N. Radhika
Adeolu Adesoji Adediran
author_sort S. Ragunath
collection DOAJ
description High Entropy alloy (HEA) is a potential reinforcement material to enhance the strength and wear behaviour of base materials through refined microstructure. In the present work, Ti6Al6V2Sn (Ti662 alloy) is reinforced with a ball-milled equimolar FeCoCrCuSi HEA by the Microwave Sintering (MS) process. A reduced α-Ti and improved β-Ti phases along with a single-phase BCC structure are attained in the Ti662/HEA composite. The properties of MS-processed composite are further enhanced by annealing at 900 °C for 60 min. The annealed composite exhibits refined grains with a mean of 0.414 μm. The annealed composite possesses exceptional microhardness of 796 HV, which is 3.2 and 1.6 times higher than the Ti662 alloy and Ti662/HEA composite. The pin-on-disc tribometer is used to conduct the wear analysis under varying process parameters. The reduced wear rate is attained in the Ti662/HEA annealed composite owing to the grain refinements, improved densification, and least porosity over the Ti662 alloy and Ti662/HEA composite. The wear mechanism including delamination, formation of the oxide layer, and severe grooves of annealed composite is revealed by worn surface morphology.
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spelling doaj-art-944d71aa11844470ba23742b723a98722025-01-19T06:25:50ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013422122224Microstructural evolution and wear performance of Ti662 alloy reinforced with FeCoCrCuSi high entropy alloy using microwave sinteringS. Ragunath0N. Radhika1Adeolu Adesoji Adediran2Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, IndiaDepartment of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India; Corresponding authorDepartment of Mechanical Engineering, Landmark University, P.M.B. 1001, Omu-Aran, Kwara State, Nigeria; Department of Mechanical Engineering Science, University of Johannesburg, Johannesburg, South AfricaHigh Entropy alloy (HEA) is a potential reinforcement material to enhance the strength and wear behaviour of base materials through refined microstructure. In the present work, Ti6Al6V2Sn (Ti662 alloy) is reinforced with a ball-milled equimolar FeCoCrCuSi HEA by the Microwave Sintering (MS) process. A reduced α-Ti and improved β-Ti phases along with a single-phase BCC structure are attained in the Ti662/HEA composite. The properties of MS-processed composite are further enhanced by annealing at 900 °C for 60 min. The annealed composite exhibits refined grains with a mean of 0.414 μm. The annealed composite possesses exceptional microhardness of 796 HV, which is 3.2 and 1.6 times higher than the Ti662 alloy and Ti662/HEA composite. The pin-on-disc tribometer is used to conduct the wear analysis under varying process parameters. The reduced wear rate is attained in the Ti662/HEA annealed composite owing to the grain refinements, improved densification, and least porosity over the Ti662 alloy and Ti662/HEA composite. The wear mechanism including delamination, formation of the oxide layer, and severe grooves of annealed composite is revealed by worn surface morphology.http://www.sciencedirect.com/science/article/pii/S223878542403014XHigh entropy alloyTi6Al6V2SnMicrowave sinteringAnnealingGrain refinementWear analysis
spellingShingle S. Ragunath
N. Radhika
Adeolu Adesoji Adediran
Microstructural evolution and wear performance of Ti662 alloy reinforced with FeCoCrCuSi high entropy alloy using microwave sintering
Journal of Materials Research and Technology
High entropy alloy
Ti6Al6V2Sn
Microwave sintering
Annealing
Grain refinement
Wear analysis
title Microstructural evolution and wear performance of Ti662 alloy reinforced with FeCoCrCuSi high entropy alloy using microwave sintering
title_full Microstructural evolution and wear performance of Ti662 alloy reinforced with FeCoCrCuSi high entropy alloy using microwave sintering
title_fullStr Microstructural evolution and wear performance of Ti662 alloy reinforced with FeCoCrCuSi high entropy alloy using microwave sintering
title_full_unstemmed Microstructural evolution and wear performance of Ti662 alloy reinforced with FeCoCrCuSi high entropy alloy using microwave sintering
title_short Microstructural evolution and wear performance of Ti662 alloy reinforced with FeCoCrCuSi high entropy alloy using microwave sintering
title_sort microstructural evolution and wear performance of ti662 alloy reinforced with fecocrcusi high entropy alloy using microwave sintering
topic High entropy alloy
Ti6Al6V2Sn
Microwave sintering
Annealing
Grain refinement
Wear analysis
url http://www.sciencedirect.com/science/article/pii/S223878542403014X
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AT nradhika microstructuralevolutionandwearperformanceofti662alloyreinforcedwithfecocrcusihighentropyalloyusingmicrowavesintering
AT adeoluadesojiadediran microstructuralevolutionandwearperformanceofti662alloyreinforcedwithfecocrcusihighentropyalloyusingmicrowavesintering