摘要
Sandwich-like Al/Ti/Al-laminated composites have many advantages such as low density and high specific strength with value in mechanical manufacturing and aerospace engineering. Here, Al/Ti/Al-laminated composites were fabricated by hot roll bonding and subsequent processes: cryorolling(-190 ℃ and-100 ℃), cold rolling(25 ℃), and hot rolling(300 ℃). Their bonding strength and mechanical properties were then studied by an Autograph AGS-X universal electronic testing machine. The results show that cryorolling can improve the interface bonding strength and tensile strength of Al/Ti/Allaminated composites. For the Al/Ti/Al-laminated composites subjected to cryorolling at-100 ℃, they have the highest strength near 260 MPa—this is 48 MPa and 41 MPa higher than the laminated composites subjected to cold and hot rolling, respectively. These results also show the strongest peeling strength. Finally, the mechanisms of the enhancement of bonding strength and mechanical properties of Al/Ti/Al-laminated composites subjected to cryorolling were mainly discussed.
基金
the National Natural Science Foundation of China(Grant Number:51674303)
the National Youth Thousand Plan Program of China
the Huxiang High-Level Talent Gathering Project of HUNAN Province(Grant Number:2018RS3015)
the Innovation Driven Program of Central South University(Grant Number:2019CX006)
the Research Fund of the Key Laboratory of High Performance Complex Manufacturing at Central South University
the Ministry of Science and Higher Education of Russia Federation for the financial support through the Grant 14.Z50.31.0043。
