4.7 Article

Enhanced strength-ductility synergy in heterostructured copper/brass laminates via introducing cryorolling

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ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2023.145239

Keywords

Copper; brass laminate; Heterostructure; Shear bands; Interface structure; Mechanical properties

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Cryorolling is used to improve the strength and ductility of copper/brass laminates by creating a multistage heterostructure consisting of ultrafine grains, curved interfaces, shear bands, and deformation twins. Low-temperature annealing further enhances the mechanical properties of the laminates.
Cryorolling is introduced to achieve synergetic improvement in the strength and ductility of heterostructured copper/brass laminates. The cryorolled laminates consist of fibrous elongated ultrafine grains, curved interface, and high density of shear bands and deformation twins. After low-temperature annealing, the multistage heterostructure is formed, which contributes to superior mechanical properties.

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