Effect of annealing and cold rolling on interface microstructure and properties of Ti/Al/Cu clad sheet fabricated by horizontal twin-roll casting

In this study, a Ti/Al/Cu three-layer clad sheet was fabricated using horizontal twin-roll casting (HTRC) technology. The interfacial morphology, interfacial microstructure and phases, interfacial bonding strength, micro-hardness, and tensile properties of the clad sheet under different annealing an...

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Main Authors: Jiujian Xu, Jinyu Fu, Shiju Li, Guangming Xu, Yong Li, Zhaodong Wang
Format: Article
Language:English
Published: Elsevier 2022-01-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785421014605
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author Jiujian Xu
Jinyu Fu
Shiju Li
Guangming Xu
Yong Li
Zhaodong Wang
author_facet Jiujian Xu
Jinyu Fu
Shiju Li
Guangming Xu
Yong Li
Zhaodong Wang
author_sort Jiujian Xu
collection DOAJ
description In this study, a Ti/Al/Cu three-layer clad sheet was fabricated using horizontal twin-roll casting (HTRC) technology. The interfacial morphology, interfacial microstructure and phases, interfacial bonding strength, micro-hardness, and tensile properties of the clad sheet under different annealing and cold rolling conditions were investigated. The surface morphology of the titanium, copper and aluminum sheets after peeling was observed. Compared with the traditional compounding process, the cast-rolling bonding process can realize the direct combination of molten metal and solid metal strip and achieve higher bonding strength. In the as-cast sheet, the thickness of the diffusion layer is 3.6 μm and the average peel strength (APS) is 20.2 N/mm at the Ti/Al interface, meanwhile the values at the Cu/Al interface are 3.2 μm and 13.8 N/mm. Before the formation of intermetallic compound (IMC) at the interface, increasing annealing temperature can improve the bonding strength by promoting atomic interdiffusion. Further cold rolling can also improve the bonding strength by forming a wavelike interface. Under the action of huge rolling force, the matrices that were not well bonded in the cast-rolling process are contacted at the atomic scale, and as a result new bonding regions are created. By improving the interfacial bonding strength, appropriate annealing and cold rolling processes make the deformation of clad sheet more cooperative. According to the results obtained in this study, the best subsequent processing technology for Ti/Al/Cu clad sheet fabricated by HTRC is annealing at 300 °C for 1.5 h followed by a single pass cold rolling with 40% reduction.
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spelling doaj.art-ab7432b649d04bf386f14b1470bb11952022-12-21T17:33:40ZengElsevierJournal of Materials Research and Technology2238-78542022-01-0116530543Effect of annealing and cold rolling on interface microstructure and properties of Ti/Al/Cu clad sheet fabricated by horizontal twin-roll castingJiujian Xu0Jinyu Fu1Shiju Li2Guangming Xu3Yong Li4Zhaodong Wang5Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, China; Corresponding author.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, ChinaIn this study, a Ti/Al/Cu three-layer clad sheet was fabricated using horizontal twin-roll casting (HTRC) technology. The interfacial morphology, interfacial microstructure and phases, interfacial bonding strength, micro-hardness, and tensile properties of the clad sheet under different annealing and cold rolling conditions were investigated. The surface morphology of the titanium, copper and aluminum sheets after peeling was observed. Compared with the traditional compounding process, the cast-rolling bonding process can realize the direct combination of molten metal and solid metal strip and achieve higher bonding strength. In the as-cast sheet, the thickness of the diffusion layer is 3.6 μm and the average peel strength (APS) is 20.2 N/mm at the Ti/Al interface, meanwhile the values at the Cu/Al interface are 3.2 μm and 13.8 N/mm. Before the formation of intermetallic compound (IMC) at the interface, increasing annealing temperature can improve the bonding strength by promoting atomic interdiffusion. Further cold rolling can also improve the bonding strength by forming a wavelike interface. Under the action of huge rolling force, the matrices that were not well bonded in the cast-rolling process are contacted at the atomic scale, and as a result new bonding regions are created. By improving the interfacial bonding strength, appropriate annealing and cold rolling processes make the deformation of clad sheet more cooperative. According to the results obtained in this study, the best subsequent processing technology for Ti/Al/Cu clad sheet fabricated by HTRC is annealing at 300 °C for 1.5 h followed by a single pass cold rolling with 40% reduction.http://www.sciencedirect.com/science/article/pii/S2238785421014605Ti/Al/Cu clad sheetHorizontal twin-roll castingAnnealingCold rollingInterfacial bonding strength
spellingShingle Jiujian Xu
Jinyu Fu
Shiju Li
Guangming Xu
Yong Li
Zhaodong Wang
Effect of annealing and cold rolling on interface microstructure and properties of Ti/Al/Cu clad sheet fabricated by horizontal twin-roll casting
Journal of Materials Research and Technology
Ti/Al/Cu clad sheet
Horizontal twin-roll casting
Annealing
Cold rolling
Interfacial bonding strength
title Effect of annealing and cold rolling on interface microstructure and properties of Ti/Al/Cu clad sheet fabricated by horizontal twin-roll casting
title_full Effect of annealing and cold rolling on interface microstructure and properties of Ti/Al/Cu clad sheet fabricated by horizontal twin-roll casting
title_fullStr Effect of annealing and cold rolling on interface microstructure and properties of Ti/Al/Cu clad sheet fabricated by horizontal twin-roll casting
title_full_unstemmed Effect of annealing and cold rolling on interface microstructure and properties of Ti/Al/Cu clad sheet fabricated by horizontal twin-roll casting
title_short Effect of annealing and cold rolling on interface microstructure and properties of Ti/Al/Cu clad sheet fabricated by horizontal twin-roll casting
title_sort effect of annealing and cold rolling on interface microstructure and properties of ti al cu clad sheet fabricated by horizontal twin roll casting
topic Ti/Al/Cu clad sheet
Horizontal twin-roll casting
Annealing
Cold rolling
Interfacial bonding strength
url http://www.sciencedirect.com/science/article/pii/S2238785421014605
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