Understanding the performance improvement mechanism of Ti/steel clad plates fabricated by double-layered hot rolling

Developing high-performance Ti/steel clad plates is crucial for applications demanding superior mechanical properties and cost efficiency. In this study, we fabricated Ti/steel clad plates via hot rolling using symmetrical assembly (SA) and double-layer assembly (DA) methods. Through comprehensive m...

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Main Authors: Yue Wu, Renhao Wu, Haiming Zhang, Tao Wang, Qingxue Huang, Hyoung Seop Kim
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Journal of Materials Research and Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2238785425018605
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author Yue Wu
Renhao Wu
Haiming Zhang
Tao Wang
Qingxue Huang
Hyoung Seop Kim
author_facet Yue Wu
Renhao Wu
Haiming Zhang
Tao Wang
Qingxue Huang
Hyoung Seop Kim
author_sort Yue Wu
collection DOAJ
description Developing high-performance Ti/steel clad plates is crucial for applications demanding superior mechanical properties and cost efficiency. In this study, we fabricated Ti/steel clad plates via hot rolling using symmetrical assembly (SA) and double-layer assembly (DA) methods. Through comprehensive microstructure characterizations and finite element method (FEM) analysis, we elucidated the influence of assembly configurations on microstructural evolution and mechanical properties. The results show that the DA method achieved higher bonding strength with a single rolling pass than the SA method with two passes, indicating a more efficient bonding process. In the SA method, the symmetric geometry concentrated the overall deformation of the clad plates on the Ti side during rolling, leading to interfacial sliding and accelerating the thinning of the Ti side thickness. This degraded the interfacial bonding strength and triggered geometric dynamic recrystallization (GDRX) on the Ti side. In contrast, the asymmetric DA geometry promoted shear deformation in the steel side, ensuring comparable thickness reduction in both Ti and steel, thereby enhancing the interface bonding strength and deformation coordination between the components. Additionally, direct Ti-roller contact in DA not only improved the surface finish but also reduced the difference in deformation resistance between Ti and steel plates through heat transfer. The continuous dynamic recrystallization (CDRX) in the Ti side of the DA samples, produced finer grains and higher geometric necessary dislocation (GND) density. The combined effects of higher work hardening in the matrix and robust interfacial bonding contribute to the enhanced tensile properties observed in DA clad plates. Our findings underscore the potential of the DA approach, coupled with hot rolling, to produce Ti/steel clad plates with exceptional mechanical properties, providing valuable insights for optimizing bimetallic composite manufacturing processes.
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spelling doaj-art-629da3b6f063452d93eb7bc4a7a8b19f2025-08-20T03:33:31ZengElsevierJournal of Materials Research and Technology2238-78542025-09-013882383910.1016/j.jmrt.2025.07.203Understanding the performance improvement mechanism of Ti/steel clad plates fabricated by double-layered hot rollingYue Wu0Renhao Wu1Haiming Zhang2Tao Wang3Qingxue Huang4Hyoung Seop Kim5School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China; Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment of Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, ChinaGraduate Institute of Ferrous & Eco Materials Technology, Pohang University of Science & Technology, Pohang, 37673, South KoreaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China; State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China; Corresponding author. School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment of Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, China; College of mechanical engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, China; Corresponding author.Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment of Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, ChinaGraduate Institute of Ferrous & Eco Materials Technology, Pohang University of Science & Technology, Pohang, 37673, South Korea; Institute for Convergence Research and Education in Advanced Technology, Yonsei University, Seoul, 03722, South KoreaDeveloping high-performance Ti/steel clad plates is crucial for applications demanding superior mechanical properties and cost efficiency. In this study, we fabricated Ti/steel clad plates via hot rolling using symmetrical assembly (SA) and double-layer assembly (DA) methods. Through comprehensive microstructure characterizations and finite element method (FEM) analysis, we elucidated the influence of assembly configurations on microstructural evolution and mechanical properties. The results show that the DA method achieved higher bonding strength with a single rolling pass than the SA method with two passes, indicating a more efficient bonding process. In the SA method, the symmetric geometry concentrated the overall deformation of the clad plates on the Ti side during rolling, leading to interfacial sliding and accelerating the thinning of the Ti side thickness. This degraded the interfacial bonding strength and triggered geometric dynamic recrystallization (GDRX) on the Ti side. In contrast, the asymmetric DA geometry promoted shear deformation in the steel side, ensuring comparable thickness reduction in both Ti and steel, thereby enhancing the interface bonding strength and deformation coordination between the components. Additionally, direct Ti-roller contact in DA not only improved the surface finish but also reduced the difference in deformation resistance between Ti and steel plates through heat transfer. The continuous dynamic recrystallization (CDRX) in the Ti side of the DA samples, produced finer grains and higher geometric necessary dislocation (GND) density. The combined effects of higher work hardening in the matrix and robust interfacial bonding contribute to the enhanced tensile properties observed in DA clad plates. Our findings underscore the potential of the DA approach, coupled with hot rolling, to produce Ti/steel clad plates with exceptional mechanical properties, providing valuable insights for optimizing bimetallic composite manufacturing processes.http://www.sciencedirect.com/science/article/pii/S2238785425018605Hot-rolled Ti/steel clad platesDouble-layered assemblyMicrostructureDynamic recrystallization
spellingShingle Yue Wu
Renhao Wu
Haiming Zhang
Tao Wang
Qingxue Huang
Hyoung Seop Kim
Understanding the performance improvement mechanism of Ti/steel clad plates fabricated by double-layered hot rolling
Journal of Materials Research and Technology
Hot-rolled Ti/steel clad plates
Double-layered assembly
Microstructure
Dynamic recrystallization
title Understanding the performance improvement mechanism of Ti/steel clad plates fabricated by double-layered hot rolling
title_full Understanding the performance improvement mechanism of Ti/steel clad plates fabricated by double-layered hot rolling
title_fullStr Understanding the performance improvement mechanism of Ti/steel clad plates fabricated by double-layered hot rolling
title_full_unstemmed Understanding the performance improvement mechanism of Ti/steel clad plates fabricated by double-layered hot rolling
title_short Understanding the performance improvement mechanism of Ti/steel clad plates fabricated by double-layered hot rolling
title_sort understanding the performance improvement mechanism of ti steel clad plates fabricated by double layered hot rolling
topic Hot-rolled Ti/steel clad plates
Double-layered assembly
Microstructure
Dynamic recrystallization
url http://www.sciencedirect.com/science/article/pii/S2238785425018605
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