Abstract
1100 Al/1100 Al laminated-metal material with inner grooves (LMWGs) were fabricated by hot roll bonding. Threshold deformation (the minimum rolling reduction in a single rolling pass that is required for metal bonding) and the mechanical properties of hot-roll-bonded LMWG and cold-roll-bonded LMWG were investigated and compared. The effects of rolling temperature and rolling reduction on the bond strength of the hot-roll-bonded LMWG were also studied. It was observed that the threshold deformation of the hot-roll-bonded LMWG decreased with increasing rolling temperature from 300 to 450 °C. However, the threshold deformations of the LMWGs rolled at 400-450 °C were smaller than those of the LMWGs rolled at room temperature, while the latter were smaller than those of the LMWGs rolled at 300-350 °C. The bond strength, ultimate tensile strength, and yield strength of the hot-roll-bonded LMWG increased with increasing rolling temperature from 300 to 450 °C. The effects of the rolling reduction were slight. When the rolling temperature and rolling reduction were 450 °C and 55%, respectively, the average bond strength reached a maximum value of 89.42 MPa.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China, No. 51675283; and Jiangsu Natural Science Foundation, No. BK20151489.
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Wang, X.B., Lv, J.M., Hu, F.Y. et al. Threshold Deformation and Mechanical Properties of Al/Al Laminated-Metal Material with Inner Grooves Fabricated by Hot Rolling. J. of Materi Eng and Perform 28, 1263–1270 (2019). https://doi.org/10.1007/s11665-019-3879-z
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DOI: https://doi.org/10.1007/s11665-019-3879-z