Influence of V and Zn in FeCrCuMnTi High-Entropy Alloys on Microstructures and Uniaxial Compaction Behavior Prepared by Mechanical Alloying

The densification behavior of FeCrCuMnTi (HEA1), FeCrCuMnTiV (HEA2), and FeCrCuMnTiVZn (HEA3) equiatomic high-entropy alloys (HEAs) was explored using different uniaxial quasi-static controlled compaction (1 mm/min). These HEAs were synthesized by mechanical alloying (MA, speed: 300 rpm, BPR: 10:1,...

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Autores principales:	Subbarayan Sivasankaran, Fahad A. Al-Mufadi, Hany R. Ammar
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	high-entropy alloys microstructures powder particle size densification compaction models Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/e16948301a4a42e4b4f3e01c49b394cf
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spelling	oai:doaj.org-article:e16948301a4a42e4b4f3e01c49b394cf2021-11-25T17:19:34ZInfluence of V and Zn in FeCrCuMnTi High-Entropy Alloys on Microstructures and Uniaxial Compaction Behavior Prepared by Mechanical Alloying10.3390/cryst111114132073-4352https://doaj.org/article/e16948301a4a42e4b4f3e01c49b394cf2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1413https://doaj.org/toc/2073-4352The densification behavior of FeCrCuMnTi (HEA1), FeCrCuMnTiV (HEA2), and FeCrCuMnTiVZn (HEA3) equiatomic high-entropy alloys (HEAs) was explored using different uniaxial quasi-static controlled compaction (1 mm/min). These HEAs were synthesized by mechanical alloying (MA, speed: 300 rpm, BPR: 10:1, time: 25 h). Various phase formations, structural characteristics (crystallite size, lattice strain, and lattice constant), thermo-dynamic calculations, powder surface morphologies, detailed microstructural evolutions, and chemical compositions were examined using X-ray diffraction, high-resolution scanning electron microscopy, and high-resolution transmission electron microscopy. The XRD results revealed the formation of multiple solid solutions (FCC, BCC, and HCP) due to the variation in entropy, and the presence of high-strength elements (Cr, Ti, and V) in the developed HEA alloys. The synthesized powders were consolidated into bulk green samples with different compaction pressures starting from 25 to 1100 MPa under as-milled and milled under stress recovery conditions (150 °C, 1 h). The incorporation of V in the FeCrCuMnTi HEA resulted in improved densification due to a greater reduction in particle size, and high configurational entropy. Furthermore, the stress-recovered powder samples produced more relative density owing to the elimination of lattice strain. Several linear and non-linear compaction models were applied to predict densification behavior. The non-linear Cooper and Eaton model produced the highest regression coefficients compared to the other models.Subbarayan SivasankaranFahad A. Al-MufadiHany R. AmmarMDPI AGarticlehigh-entropy alloysmicrostructurespowder particle sizedensificationcompaction modelsCrystallographyQD901-999ENCrystals, Vol 11, Iss 1413, p 1413 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	high-entropy alloys microstructures powder particle size densification compaction models Crystallography QD901-999
spellingShingle	high-entropy alloys microstructures powder particle size densification compaction models Crystallography QD901-999 Subbarayan Sivasankaran Fahad A. Al-Mufadi Hany R. Ammar Influence of V and Zn in FeCrCuMnTi High-Entropy Alloys on Microstructures and Uniaxial Compaction Behavior Prepared by Mechanical Alloying
description	The densification behavior of FeCrCuMnTi (HEA1), FeCrCuMnTiV (HEA2), and FeCrCuMnTiVZn (HEA3) equiatomic high-entropy alloys (HEAs) was explored using different uniaxial quasi-static controlled compaction (1 mm/min). These HEAs were synthesized by mechanical alloying (MA, speed: 300 rpm, BPR: 10:1, time: 25 h). Various phase formations, structural characteristics (crystallite size, lattice strain, and lattice constant), thermo-dynamic calculations, powder surface morphologies, detailed microstructural evolutions, and chemical compositions were examined using X-ray diffraction, high-resolution scanning electron microscopy, and high-resolution transmission electron microscopy. The XRD results revealed the formation of multiple solid solutions (FCC, BCC, and HCP) due to the variation in entropy, and the presence of high-strength elements (Cr, Ti, and V) in the developed HEA alloys. The synthesized powders were consolidated into bulk green samples with different compaction pressures starting from 25 to 1100 MPa under as-milled and milled under stress recovery conditions (150 °C, 1 h). The incorporation of V in the FeCrCuMnTi HEA resulted in improved densification due to a greater reduction in particle size, and high configurational entropy. Furthermore, the stress-recovered powder samples produced more relative density owing to the elimination of lattice strain. Several linear and non-linear compaction models were applied to predict densification behavior. The non-linear Cooper and Eaton model produced the highest regression coefficients compared to the other models.
format	article
author	Subbarayan Sivasankaran Fahad A. Al-Mufadi Hany R. Ammar
author_facet	Subbarayan Sivasankaran Fahad A. Al-Mufadi Hany R. Ammar
author_sort	Subbarayan Sivasankaran
title	Influence of V and Zn in FeCrCuMnTi High-Entropy Alloys on Microstructures and Uniaxial Compaction Behavior Prepared by Mechanical Alloying
title_short	Influence of V and Zn in FeCrCuMnTi High-Entropy Alloys on Microstructures and Uniaxial Compaction Behavior Prepared by Mechanical Alloying
title_full	Influence of V and Zn in FeCrCuMnTi High-Entropy Alloys on Microstructures and Uniaxial Compaction Behavior Prepared by Mechanical Alloying
title_fullStr	Influence of V and Zn in FeCrCuMnTi High-Entropy Alloys on Microstructures and Uniaxial Compaction Behavior Prepared by Mechanical Alloying
title_full_unstemmed	Influence of V and Zn in FeCrCuMnTi High-Entropy Alloys on Microstructures and Uniaxial Compaction Behavior Prepared by Mechanical Alloying
title_sort	influence of v and zn in fecrcumnti high-entropy alloys on microstructures and uniaxial compaction behavior prepared by mechanical alloying
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e16948301a4a42e4b4f3e01c49b394cf
work_keys_str_mv	AT subbarayansivasankaran influenceofvandzninfecrcumntihighentropyalloysonmicrostructuresanduniaxialcompactionbehaviorpreparedbymechanicalalloying AT fahadaalmufadi influenceofvandzninfecrcumntihighentropyalloysonmicrostructuresanduniaxialcompactionbehaviorpreparedbymechanicalalloying AT hanyrammar influenceofvandzninfecrcumntihighentropyalloysonmicrostructuresanduniaxialcompactionbehaviorpreparedbymechanicalalloying
_version_	1718412500469284864

Influence of V and Zn in FeCrCuMnTi High-Entropy Alloys on Microstructures and Uniaxial Compaction Behavior Prepared by Mechanical Alloying

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