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Article

Study on Interface Structure of Cu/Al Clad Plates by Roll Casting

by 1,2, 1,2,*, 1,2 and 1,2
1
College of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China
2
Collaborative Innovation Center of Non-Ferrous Materials, Luoyang 471023, China
*
Author to whom correspondence should be addressed.
Metals 2018, 8(10), 770; https://doi.org/10.3390/met8100770
Received: 15 September 2018 / Revised: 25 September 2018 / Accepted: 25 September 2018 / Published: 27 September 2018
Large scale Atomic/Molecular dynamic Parallel Simulator (LAMMPS) molecular dynamics simulation software was used to simulate the copper and aluminum atom diffusion and changes of interface during heating and cooling process of copper and aluminum composite panels. The structures of the interface were characterized through scanning electron microscope (SEM), X-ray diffraction (XRD), and transmission electron microscope (TEM), and the mechanical properties were also tested. The simulation results show that the diffusion rate of copper atom is higher than that of aluminum atom, and that the CuAl2 radial distribution function of the interface at 300 K is consistent with that of pure CuAl2 at room temperature. At 930 K, t = 50 ps Cu atoms spread at a distance of approximately four Al lattice constants around the Al layer, and Al atoms spread to about half a lattice constant distance to the Cu layer. The experimental results show that the thickness of the interface in copper–aluminum composite plate is about 1 μm, and only one kind of CuAl2 with tetragonal phase structure is generated in the interface, which corresponds with the result of molecular dynamics simulation. View Full-Text
Keywords: molecular dynamics; LAMMPS; copper and aluminum composite panels; casting process; interface molecular dynamics; LAMMPS; copper and aluminum composite panels; casting process; interface
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MDPI and ACS Style

Chang, Q.; Xie, J.; Mao, A.; Wang, W. Study on Interface Structure of Cu/Al Clad Plates by Roll Casting. Metals 2018, 8, 770. https://doi.org/10.3390/met8100770

AMA Style

Chang Q, Xie J, Mao A, Wang W. Study on Interface Structure of Cu/Al Clad Plates by Roll Casting. Metals. 2018; 8(10):770. https://doi.org/10.3390/met8100770

Chicago/Turabian Style

Chang, Qinghua; Xie, Jingpei; Mao, Aixia; Wang, Wenyan. 2018. "Study on Interface Structure of Cu/Al Clad Plates by Roll Casting" Metals 8, no. 10: 770. https://doi.org/10.3390/met8100770

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