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Interfacial bonding mechanism of Cu/Al composite plate produced by corrugated cold roll bonding

Rare Metals 2021年第5期40卷 1284-1293页

作者： Tao Wang Xiang-Yu Gao Zhi-Xiong Zhang Zhong-Kai Ren Yan-Yang Qi Jing-Wei Zhao College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan 030024China Shanxi Engineering Research Center for Metal Composites Forming Process and Equipment Taiyuan University of TechnologyTaiyuan 030024China TYUT-UOW Joint Research Center Taiyuan University of TechnologyTaiyuan 030024China

Corrugated cold roll bonding(CCRB) produces metal composite plate with improved mechanical properties compared with conventional methods,but the interfacial mechanism is not fully ***,Cu/Al composite plate with good plate shape was produced by CCRB,and the bonding mechanism and strength along the corrugated interface were studied by experiments and finite element *** results showed that the average bonding strength of Cu/Al composite plate produced by CCRB was nearly twice that of conventional composite plate at an average reduction of 40% during *** friction shear stresses occurred at the interface of the corrugated composite plate,which promoted the plastic deformation of the metals and accelerated the rupture of the brittle interfacial *** backscattered diffraction analysis showed that higher degrees of grain elongation and refinement occurred in the matrices at the front waist and trough due to the stronger normal and shear ***-dispersive spectroscopy line scans showed that the thickest atomic diffusion layer occurred at the front *** present combination of experimental and computational analyses provides insights into the underlying mechanism of mechanically improved metal composites prepared by CCRB.

关键词： Corrugated cold roll bonding Cu/Al composite Bonding strength friction shear stress Grain refinement Atomic diffusion layer

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