Investigation of the Annealing Effects on Mechanical Properties and Interfacial Characteristic of TA1/Al5083 Bimetal Composite

Publication Name

Journal of Materials Engineering and Performance


The influence of annealing treatment on the mechanical properties and interfacial characteristics of a TA1/Al5083 bimetal composite was investigated in this research. The bimetal composite plates were prepared by explosive welding and annealing at temperatures ranging from 400 to 550 °C at intervals of 50 °C for 3 h. Uniaxial tensile and shear tests were employed to study the influence of the annealing treatments. Uniaxial tensile tests indicate that the tensile strength and elongation display a tendency to first improve and then decrease with increasing annealing temperature. No obvious necking phenomenon is observed in the composite sheet annealed at 400 and 450 °C, and extremely short cracks appear in the interfacial transition zone, while localized necking and delamination phenomena are found to occur in the composite sheet annealed at 500 and 550 °C. The ultimate tensile strength and elongation of specimens annealed at 450 and 500 °C is improved, while specimens annealed at 550 °C show a serious deterioration in elongation. In addition, shear tests demonstrate that the shear strength first improves and then decreases with increasing annealing temperature. On the basis of a finite element method (FEM) simulation, a cohesive zone model is validated to reveal the interfacial characteristics. The research results obtained in this work provide a direction for further investigation and design of bimetal or laminated composite components for application in industrial fields.

Open Access Status

This publication is not available as open access

Funding Number


Funding Sponsor

National Natural Science Foundation of China



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