Research on Pulsed Current Assisted Differential Temperature Rolling of Ti/Cu with Gradient Heating

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Abstract:

A new method of pulsed current-assisted gradient heating and different-temperature rolling is proposed to address the problems of poor plate shape and difficult interfacial bonding in the preparation process of traditional Ti/Cu composite plates. Through carrying out pulsed current different-temperature rolling experiments and combining mechanical property tests with microstructural characterization, the influence law of energization time on the mechanical properties of composite plates was systematically analyzed. The results show that the interfacial shear strength of the composite plate first increases and then decreases with the energization time, reaching a peak of 148.69 MPa at 40 s. This is mainly because the temperature gradient between the titanium plate and the copper plate achieves the optimal deformation coordination at this time. Meanwhile, the tensile strength of the composite plate also reaches the maximum value of 404.61 MPa at 40 s. It can be seen that pulsed current different-temperature rolling can effectively optimize the deformation coordination between dissimilar materials and significantly improve their plastic deformation ability.

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Materials Science Forum (Volume 1171)

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57-65

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December 2025

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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