Tensile Properties of Cryorolled Cu/Al Clad Sheet with an SUS304 Interlayer after Annealing at Various Temperatures
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Microstructure Evolution of Cryorolled Samples during Annealing
3.2. Tensile Properties of Cryorolled and Hot-Rolled Samples
3.3. Effect of Cryorolling on Tensile Strength
3.4. Effect of Cryorolling on the Elongation after Fracture
4. Conclusions
- (1)
- Benefiting from the significant grain refinement effect of cryorolling, the tensile strength of the cryorolled samples reached as high as 302 MPa with the elongation after a fracture of 2.4%. After annealing, the proportion of recrystallized grains and substructured grains gradually increased. Upon annealing at 400 °C, the tensile strength decreased to 159 MPa, while the elongation recovered to 29.01%.
- (2)
- The ability of cryorolling to promote a higher proportion of LAGBs, coupled with the prevalence of numerous LAGBs within grains enhances the microstructural refinement, which is 35 MPa higher in tensile strength than that of the hot-rolled samples. A 13.1% increase is achieved within a total of 70% rolling reduction.
- (3)
- For samples annealed at 300 °C, the cryorolled samples exhibit a higher degree of recrystallization than the hot-rolled samples, resulting in an improved elongation after fracture. The strength comparable to the hot-rolled clad sheet is primarily attributed to the higher proportion of annealing twins.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Materials | Tensile Strength/MPa | Elongation after Fracture/% |
---|---|---|
T2 Cu | 205 | 46 |
1060 Al | 70 | 56 |
SUS304 | 1318 | 10.2 |
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Xuan, Y.; Li, J.; Gao, H.; Yu, H. Tensile Properties of Cryorolled Cu/Al Clad Sheet with an SUS304 Interlayer after Annealing at Various Temperatures. Materials 2024, 17, 4065. https://doi.org/10.3390/ma17164065
Xuan Y, Li J, Gao H, Yu H. Tensile Properties of Cryorolled Cu/Al Clad Sheet with an SUS304 Interlayer after Annealing at Various Temperatures. Materials. 2024; 17(16):4065. https://doi.org/10.3390/ma17164065
Chicago/Turabian StyleXuan, Yanni, Jing Li, Haitao Gao, and Hailiang Yu. 2024. "Tensile Properties of Cryorolled Cu/Al Clad Sheet with an SUS304 Interlayer after Annealing at Various Temperatures" Materials 17, no. 16: 4065. https://doi.org/10.3390/ma17164065