Novel twin-roll-cast Ti/Al clad sheets with excellent tensile properties

Abstract Pure Ti or Ti alloys are recently spot-lighted in construction industries because they have excellent resistance to corrosions, chemicals, and climates as well as various coloring characteristics, but their wide applications are postponed by their expensiveness and poor formability. We pres...

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Autores principales:	Dae Woong Kim, Dong Ho Lee, Jung-Su Kim, Seok Su Sohn, Hyoung Seop Kim, Sunghak Lee
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/30b4e68dc337466781ce3a9eda7d966c
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spelling	oai:doaj.org-article:30b4e68dc337466781ce3a9eda7d966c2021-12-02T12:32:53ZNovel twin-roll-cast Ti/Al clad sheets with excellent tensile properties10.1038/s41598-017-08681-92045-2322https://doaj.org/article/30b4e68dc337466781ce3a9eda7d966c2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08681-9https://doaj.org/toc/2045-2322Abstract Pure Ti or Ti alloys are recently spot-lighted in construction industries because they have excellent resistance to corrosions, chemicals, and climates as well as various coloring characteristics, but their wide applications are postponed by their expensiveness and poor formability. We present a new fabrication process of Ti/Al clad sheets by bonding a thin Ti sheet on to a 5052 Al alloy melt during vertical-twin-roll casting. This process has merits of reduced production costs as well as improved tensile properties. In the as-twin-roll-cast clad sheet, the homogeneously cast microstructure existed in the Al alloy substrate side, while the Ti/Al interface did not contain any reaction products, pores, cracks, or lateral delamination, which indicated the successful twin-roll casting. When this sheet was annealed at 350 °C~600 °C, the metallurgical bonding was expanded by interfacial diffusion, thereby leading to improvement in tensile properties over those calculated by a rule of mixtures. The ductility was also improved over that of 5052-O Al alloy (25%) or pure Ti (25%) by synergic effect of homogeneous deformation due to excellent Ti/Al bonding. This work provides new applications of Ti/Al clad sheets to lightweight-alloy clad sheets requiring excellent formability and corrosion resistance as well as alloy cost saving.Dae Woong KimDong Ho LeeJung-Su KimSeok Su SohnHyoung Seop KimSunghak LeeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dae Woong Kim Dong Ho Lee Jung-Su Kim Seok Su Sohn Hyoung Seop Kim Sunghak Lee Novel twin-roll-cast Ti/Al clad sheets with excellent tensile properties
description	Abstract Pure Ti or Ti alloys are recently spot-lighted in construction industries because they have excellent resistance to corrosions, chemicals, and climates as well as various coloring characteristics, but their wide applications are postponed by their expensiveness and poor formability. We present a new fabrication process of Ti/Al clad sheets by bonding a thin Ti sheet on to a 5052 Al alloy melt during vertical-twin-roll casting. This process has merits of reduced production costs as well as improved tensile properties. In the as-twin-roll-cast clad sheet, the homogeneously cast microstructure existed in the Al alloy substrate side, while the Ti/Al interface did not contain any reaction products, pores, cracks, or lateral delamination, which indicated the successful twin-roll casting. When this sheet was annealed at 350 °C~600 °C, the metallurgical bonding was expanded by interfacial diffusion, thereby leading to improvement in tensile properties over those calculated by a rule of mixtures. The ductility was also improved over that of 5052-O Al alloy (25%) or pure Ti (25%) by synergic effect of homogeneous deformation due to excellent Ti/Al bonding. This work provides new applications of Ti/Al clad sheets to lightweight-alloy clad sheets requiring excellent formability and corrosion resistance as well as alloy cost saving.
format	article
author	Dae Woong Kim Dong Ho Lee Jung-Su Kim Seok Su Sohn Hyoung Seop Kim Sunghak Lee
author_facet	Dae Woong Kim Dong Ho Lee Jung-Su Kim Seok Su Sohn Hyoung Seop Kim Sunghak Lee
author_sort	Dae Woong Kim
title	Novel twin-roll-cast Ti/Al clad sheets with excellent tensile properties
title_short	Novel twin-roll-cast Ti/Al clad sheets with excellent tensile properties
title_full	Novel twin-roll-cast Ti/Al clad sheets with excellent tensile properties
title_fullStr	Novel twin-roll-cast Ti/Al clad sheets with excellent tensile properties
title_full_unstemmed	Novel twin-roll-cast Ti/Al clad sheets with excellent tensile properties
title_sort	novel twin-roll-cast ti/al clad sheets with excellent tensile properties
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/30b4e68dc337466781ce3a9eda7d966c
work_keys_str_mv	AT daewoongkim noveltwinrollcasttialcladsheetswithexcellenttensileproperties AT dongholee noveltwinrollcasttialcladsheetswithexcellenttensileproperties AT jungsukim noveltwinrollcasttialcladsheetswithexcellenttensileproperties AT seoksusohn noveltwinrollcasttialcladsheetswithexcellenttensileproperties AT hyoungseopkim noveltwinrollcasttialcladsheetswithexcellenttensileproperties AT sunghaklee noveltwinrollcasttialcladsheetswithexcellenttensileproperties
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Novel twin-roll-cast Ti/Al clad sheets with excellent tensile properties

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