轧制处理对钢铜石墨复合板力学性能的影响

Influence of rolling deformation on the mechanical properties of steel copper graphite bonding plates

在室温下,对钢铜石墨复合板进行不同压下率的轧制处理,研究了室温轧制对钢铜石墨复合板界面力学性能的影响,确定了压下率与界面剪切强度之间的关系。结果表明:对于由1.2 mm厚08Al钢板和2.0 mm厚铜石墨覆层构成的钢铜石墨复合板,当压下率小于1.5%时,复合板的界面剪切强度随着压下率的增大而增大;当压下率大于1.5%时,复合板的界面剪切强度随着压下率的增大而减小;当压下率为1.5%时,可消除复合板的界面附加应力,获得的最大界面剪切强度为150.5 MPa。

Rolling was carried out with steel copper graphite bonding plates at room temperature.The influence of rolling deformation on the interfacial mechanical properties of steel copper graphite bonding plates was studied and the relationship between relative reduction and interfacial shear strength was determined.The results show that for the bonding plate made of a 1.2 mm-thick 08Al steel plate and a 2.0 mm-thick copper graphite layer,when the relative reduction is smaller than 1.5%,the interfacial shear strength of the bonding plate increases with the relative reduction increasing.When the relative reduction is larger than 1.5%,the interfacial shear strength of the bonding plate decreases with the relative reduction increasing.When the relative reduction is 1.5%,the interfacial subsidiary stress is eliminated and thus the maximum interfacial shear strength of 150.5 MPa can be obtained.