| METALS AND METAL MATRIX COMPOSITES |
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| Effect of Rolling Temperature of Corrugated Roll on the Interface Structure and Mechanical Properties of Mg/Al Composite Plate |
| GUO Miao1,2,3, LI Sha1,2,3, ZHAO Liping1, HAN Jianchao1,2,3, WANG Tao1,2,3
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1 College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China
2 Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
3 TYUT-UOW Joint Research Centre, Taiyuan University of Technology, Taiyuan 030024, China |
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Abstract In this study, thecorrugated roll was used to prepare the magnesium aluminum composite plate. Compared with the traditional flat rolling, the effect of rolling temperature on the bonding interface state, microstructure and mechanical properties of the composite plate was studied. At the same time, a two-dimensional rolling model was established to analyze the change of strain during the rolling process. The results showed that at the same rolling temperature, corrugated roll could effectively improve the bonding efficiency of Mg/Al bimetal, and the critical bonding temperature reduced from 300—350 ℃ to 250 ℃. With the increase of rolling temperature, the thickness of diffusion layer increased gradually, and no intermediate compounds were found. According to the simulation results, the equivalent strain at the trough was obviously higher than that of peak, and the strain of flat rolling was between the peak and the trough. Rolling temperature exhibited little effect on the equivalent strain. The tensile strength of Mg/Al composite plate made by corrugated roll was higher than that made by flat roller at the same temperature. The tensile strength of composite plate increased first and then decreased with the increase of rolling temperature, and reached the peak value as 310 MPa at 350 ℃.
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Published: 02 December 2020
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| Fund:This work was financially supported by the Major Program of National Natural Science Foundation of China (U1710254), the National Natural Science Foundation Youth Fund of China (51904205), the Shanxi Province Science and Technology Major Projects(20181101008), and the Applied Basic Research Project of Shanxi Province (201801D221221). |
| About author:: Miao Guo, from September 2017 to November 2019, he studied in Taiyuan University of Technology, Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment Ministry of Education,mainly engaged in the research of metal composite processing.Jianchao Hanreceived his Ph.D. degree in Harbin Institute of Technology in 2016. He is currently a lecturer in Taiyuan University of Technology and participates in the rolling processing of metal composite plate. His research interests are preparation of metal compo-site plate by corrugated roll, microstructure and mecha-nical property evaluation and interface mechanical behavior. |
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2020, Vol. 34 
