Revealing the Relationship Between Morphology of Pb-Rich Secondary Phases and Mechanical Properties of Laminated Cu–Pb–Sn/Steel Composite Through CALPHAD and FEA

Laminated Cu–Pb–Sn/Steel composites (C/SC) with Pb-rich secondary phases (SPs) in different morphology were prepared by solid–liquid continuous casting compositing (S-LC). SPs transform from network to rod-like to abnormally coarsening morphology with casting temperatures increasing from 1473 K to 1...

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Bibliographic Details
Published in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2022-04, Vol.53 (4), p.1462-1478
Main Authors: Dong, Bowen, Jie, Jinchuan, Peng, Bo, Qu, Jianping, Wu, Zhenpeng, Wang, Qiang, Zhou, Jiahan, Liu, Shichao, Zou, Qingchuan, Wang, Tongmin, Li, Tingju
Format: Article
Language:English
Subjects:
Bonding strength
Carrying capacity
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composite materials
Continuous casting
Copper
Elongation
Finite element method
Interdiffusion
Lead
Materials Science
Mathematical analysis
Mechanical properties
Metallic Materials
Morphology
Nanotechnology
Original Research Article
Plastic deformation
Steel
Structural Materials
Surfaces and Interfaces
Tensile strength
Thickness
Thin Films
Tin
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Summary:Laminated Cu–Pb–Sn/Steel composites (C/SC) with Pb-rich secondary phases (SPs) in different morphology were prepared by solid–liquid continuous casting compositing (S-LC). SPs transform from network to rod-like to abnormally coarsening morphology with casting temperatures increasing from 1473 K to 1513 K to 1533 K. The prepared C/SC possesses a high-quality interface and high bonding strength due to the existence of the Cu/Fe interdiffusion layer with a thickness of about 0.75 μ m. The thickness calculated by CALPHAD is in the range of 0.38 to 1.35 μ m which is consistent with experimental results. The mechanical properties of C/SC present a high correlation with the morphology of SPs. C/SC with network and rod-like SPs, respectively, shows the lowest and highest plasticity and carrying capacity. Finite element analysis (FEA) was conducted to simulate the plastic deformation of C/SC. By comparing the experiments with FEA results, the network SPs with high continuity were proven to significantly decrease the tensile strength and elongation of Cu–Pb–Sn alloy layer of C/SC by splitting the matrix. C/SC with rod-like SPs presents the highest mechanical performance due to the minimal damage to matrix. Graphical Abstract
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-022-06609-1