Ductile Zr-Based Bulk Metallic Glasses by Controlling Heterogeneous Microstructure from Phase Competition Strategy

In this paper, we prepare the alloys of Zr(41.2)Ti(13.8)Cu(12.5)Ni(10)Be(22.5), Zr(44.4)Ti(14.8)Cu(14.3)Ni(11.5)Be(15), and Zr(38)Ti(12.7)Cu(9.6)Ni(7.7)Be(32) to show the effects of alloy composition on the inhomogeneity structures and mechanical properties of Zr-based bulk metallic glasses (BMGs)....

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Autores principales: Cheng, J. L., Wang, J. J., Rui, J. X., Yun, Y. L., Zhao, W., Li, F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6955685/
https://www.ncbi.nlm.nih.gov/pubmed/31817045
http://dx.doi.org/10.3390/nano9121728
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author Cheng, J. L.
Wang, J. J.
Rui, J. X.
Yun, Y. L.
Zhao, W.
Li, F.
author_facet Cheng, J. L.
Wang, J. J.
Rui, J. X.
Yun, Y. L.
Zhao, W.
Li, F.
author_sort Cheng, J. L.
collection PubMed
description In this paper, we prepare the alloys of Zr(41.2)Ti(13.8)Cu(12.5)Ni(10)Be(22.5), Zr(44.4)Ti(14.8)Cu(14.3)Ni(11.5)Be(15), and Zr(38)Ti(12.7)Cu(9.6)Ni(7.7)Be(32) to show the effects of alloy composition on the inhomogeneity structures and mechanical properties of Zr-based bulk metallic glasses (BMGs). Compared with the best glass former Zr(41.2)Ti(13.8)Cu(12.5)Ni(10)Be(22.5), some nanoscale inhomogeneity structures can be induced by shifting the compositions towards a primary phase in the alloys of Zr(44.4)Ti(14.8)Cu(14.3)Ni(11.5)Be(15) and Zr(38)Ti(12.7)Cu(9.6)Ni(7.7)Be(32). The room temperature compression tests reveal that theBMGs contained nanoscale inhomogeneity structures exhibit superior mechanical properties with the high strength of 1780 MPa and especially a remarkable plastic strain of over 9%. These findings provide a new perspective to enhance the ductility of BMGs by introducing nanoscale inhomogeneity structures based on the phase competition strategy.
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spelling pubmed-69556852020-01-23 Ductile Zr-Based Bulk Metallic Glasses by Controlling Heterogeneous Microstructure from Phase Competition Strategy Cheng, J. L. Wang, J. J. Rui, J. X. Yun, Y. L. Zhao, W. Li, F. Nanomaterials (Basel) Article In this paper, we prepare the alloys of Zr(41.2)Ti(13.8)Cu(12.5)Ni(10)Be(22.5), Zr(44.4)Ti(14.8)Cu(14.3)Ni(11.5)Be(15), and Zr(38)Ti(12.7)Cu(9.6)Ni(7.7)Be(32) to show the effects of alloy composition on the inhomogeneity structures and mechanical properties of Zr-based bulk metallic glasses (BMGs). Compared with the best glass former Zr(41.2)Ti(13.8)Cu(12.5)Ni(10)Be(22.5), some nanoscale inhomogeneity structures can be induced by shifting the compositions towards a primary phase in the alloys of Zr(44.4)Ti(14.8)Cu(14.3)Ni(11.5)Be(15) and Zr(38)Ti(12.7)Cu(9.6)Ni(7.7)Be(32). The room temperature compression tests reveal that theBMGs contained nanoscale inhomogeneity structures exhibit superior mechanical properties with the high strength of 1780 MPa and especially a remarkable plastic strain of over 9%. These findings provide a new perspective to enhance the ductility of BMGs by introducing nanoscale inhomogeneity structures based on the phase competition strategy. MDPI 2019-12-03 /pmc/articles/PMC6955685/ /pubmed/31817045 http://dx.doi.org/10.3390/nano9121728 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cheng, J. L.
Wang, J. J.
Rui, J. X.
Yun, Y. L.
Zhao, W.
Li, F.
Ductile Zr-Based Bulk Metallic Glasses by Controlling Heterogeneous Microstructure from Phase Competition Strategy
title Ductile Zr-Based Bulk Metallic Glasses by Controlling Heterogeneous Microstructure from Phase Competition Strategy
title_full Ductile Zr-Based Bulk Metallic Glasses by Controlling Heterogeneous Microstructure from Phase Competition Strategy
title_fullStr Ductile Zr-Based Bulk Metallic Glasses by Controlling Heterogeneous Microstructure from Phase Competition Strategy
title_full_unstemmed Ductile Zr-Based Bulk Metallic Glasses by Controlling Heterogeneous Microstructure from Phase Competition Strategy
title_short Ductile Zr-Based Bulk Metallic Glasses by Controlling Heterogeneous Microstructure from Phase Competition Strategy
title_sort ductile zr-based bulk metallic glasses by controlling heterogeneous microstructure from phase competition strategy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6955685/
https://www.ncbi.nlm.nih.gov/pubmed/31817045
http://dx.doi.org/10.3390/nano9121728
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