Effect of Fe addition on glass-forming ability, thermal stability of B2 CuZr phase and crystallization kinetics for CuZr-based amorphous alloys

The glass-forming ability (GFA), thermal stability and crystallization kinetics of (Cu0.5Zr0.5)100-xFex (x = 2.5, 5, 7.5, 10 and 12.5 at.%) amorphous alloys were studied in detail. As Fe concentration increases, the GFA and thermal stability decrease first and then increase. The excessive Fe additio...

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Autores principales:	Ziyan Hao, Kai Qin, Kaikai Song, Chongde Cao
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Amorphous alloys Thermal stability Glass-forming ability Crystallization kinetics Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/998f8fd2b2314b4ca472d05acb6e5b96
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spelling	oai:doaj.org-article:998f8fd2b2314b4ca472d05acb6e5b962021-12-04T04:34:32ZEffect of Fe addition on glass-forming ability, thermal stability of B2 CuZr phase and crystallization kinetics for CuZr-based amorphous alloys2238-785410.1016/j.jmrt.2021.11.093https://doaj.org/article/998f8fd2b2314b4ca472d05acb6e5b962021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421013727https://doaj.org/toc/2238-7854The glass-forming ability (GFA), thermal stability and crystallization kinetics of (Cu0.5Zr0.5)100-xFex (x = 2.5, 5, 7.5, 10 and 12.5 at.%) amorphous alloys were studied in detail. As Fe concentration increases, the GFA and thermal stability decrease first and then increase. The excessive Fe addition significantly deteriorates the GFA due to the precipitation of the FeZr2 phase. Interestingly, with increasing Fe concentration, the crystallization products gradually transit from Cu10Zr7 and CuZr2 to B2 CuZr phase, indicating that Fe addition can effectively enhance the thermal stability of B2 phase. Simulation results show that Fe atoms may be dissolved into the B2 lattice substituting Cu sites and decrease the formation energy, which is similar to Co–or Zn-added CuZr-based alloys. Non-isothermal crystallization behaviors of Cu–Zr–Fe amorphous alloys are well described by the Šesták-Berggren (SB) model instead of the John-Mehl-Avrami (JMA) model due to the multi-phase formation (low Fe concentration) or the nucleation and growth of B2 phase (high Fe concentration). These results could help with the understanding of further stabilizing B2 CuZr phase and the fabrication of high-performance CuZr-based composites.Ziyan HaoKai QinKaikai SongChongde CaoElsevierarticleAmorphous alloysThermal stabilityGlass-forming abilityCrystallization kineticsMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 6464-6475 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Amorphous alloys Thermal stability Glass-forming ability Crystallization kinetics Mining engineering. Metallurgy TN1-997
spellingShingle	Amorphous alloys Thermal stability Glass-forming ability Crystallization kinetics Mining engineering. Metallurgy TN1-997 Ziyan Hao Kai Qin Kaikai Song Chongde Cao Effect of Fe addition on glass-forming ability, thermal stability of B2 CuZr phase and crystallization kinetics for CuZr-based amorphous alloys
description	The glass-forming ability (GFA), thermal stability and crystallization kinetics of (Cu0.5Zr0.5)100-xFex (x = 2.5, 5, 7.5, 10 and 12.5 at.%) amorphous alloys were studied in detail. As Fe concentration increases, the GFA and thermal stability decrease first and then increase. The excessive Fe addition significantly deteriorates the GFA due to the precipitation of the FeZr2 phase. Interestingly, with increasing Fe concentration, the crystallization products gradually transit from Cu10Zr7 and CuZr2 to B2 CuZr phase, indicating that Fe addition can effectively enhance the thermal stability of B2 phase. Simulation results show that Fe atoms may be dissolved into the B2 lattice substituting Cu sites and decrease the formation energy, which is similar to Co–or Zn-added CuZr-based alloys. Non-isothermal crystallization behaviors of Cu–Zr–Fe amorphous alloys are well described by the Šesták-Berggren (SB) model instead of the John-Mehl-Avrami (JMA) model due to the multi-phase formation (low Fe concentration) or the nucleation and growth of B2 phase (high Fe concentration). These results could help with the understanding of further stabilizing B2 CuZr phase and the fabrication of high-performance CuZr-based composites.
format	article
author	Ziyan Hao Kai Qin Kaikai Song Chongde Cao
author_facet	Ziyan Hao Kai Qin Kaikai Song Chongde Cao
author_sort	Ziyan Hao
title	Effect of Fe addition on glass-forming ability, thermal stability of B2 CuZr phase and crystallization kinetics for CuZr-based amorphous alloys
title_short	Effect of Fe addition on glass-forming ability, thermal stability of B2 CuZr phase and crystallization kinetics for CuZr-based amorphous alloys
title_full	Effect of Fe addition on glass-forming ability, thermal stability of B2 CuZr phase and crystallization kinetics for CuZr-based amorphous alloys
title_fullStr	Effect of Fe addition on glass-forming ability, thermal stability of B2 CuZr phase and crystallization kinetics for CuZr-based amorphous alloys
title_full_unstemmed	Effect of Fe addition on glass-forming ability, thermal stability of B2 CuZr phase and crystallization kinetics for CuZr-based amorphous alloys
title_sort	effect of fe addition on glass-forming ability, thermal stability of b2 cuzr phase and crystallization kinetics for cuzr-based amorphous alloys
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/998f8fd2b2314b4ca472d05acb6e5b96
work_keys_str_mv	AT ziyanhao effectoffeadditiononglassformingabilitythermalstabilityofb2cuzrphaseandcrystallizationkineticsforcuzrbasedamorphousalloys AT kaiqin effectoffeadditiononglassformingabilitythermalstabilityofb2cuzrphaseandcrystallizationkineticsforcuzrbasedamorphousalloys AT kaikaisong effectoffeadditiononglassformingabilitythermalstabilityofb2cuzrphaseandcrystallizationkineticsforcuzrbasedamorphousalloys AT chongdecao effectoffeadditiononglassformingabilitythermalstabilityofb2cuzrphaseandcrystallizationkineticsforcuzrbasedamorphousalloys
_version_	1718372984494751744

Effect of Fe addition on glass-forming ability, thermal stability of B2 CuZr phase and crystallization kinetics for CuZr-based amorphous alloys

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