爆炸复合Cu-Al-Ni-Mn-Ti 与Qbe<sub>2</sub> 合金减振弹性复合板材料

爆炸复合Cu-Al-Ni-Mn-Ti 与Qbe₂ 合金减振弹性复合板材料

基金项目: 国家自然科学基金(50071069) 资助项目

详细信息

School of Materials Science and Engineering, Cent ral South University, Changsha 410083, China

摘要

摘要: 利用Cu-Al-Ni-Mn-Ti 与QBe₂ 合金爆炸复合研制出一种新型的减振弹性复合板材料, 用多功能内耗仪测试了该复合板材料的阻尼性能。结果表明: 其内耗值比QBe₂ 增加了近一个数量级, 而且具有明显的振幅效应。复合板材料的电阻率介于Cu-Al-Ni-Mn-Ti 与QBe₂ 合金之间, 复合界面对电阻率的影响较小。爆炸复合的界面多呈波浪型, 在界面附近有融化区, 780 ℃等温处理, 界面随保温时间延长而展宽。
- 复合板材料 /
- 爆炸复合 /
- 内耗
Abstract: A novel type elasticity-damping composite was manufactured using Cu-Al-Ni-Mn-Ti alloy and QBe₂ alloy by explosion cladding. The damping value of the composite is about 10 times higher than that of the QBe₂ alloy ,and has an obvious amplitude effect . The elect rical resistivity of the composite board is lower than that of the QBe₂alloy but higher than that of the Cu-Al-Ni-Mn-Ti SMA. The boundary of the composite board has a little effect onthe resistivity of the composite board. The shape of the boundary of the composite by explosion cladding is wavelike. At 780 ℃, the boundary of the composite widens with the prolong of the holding time.
- composite board /
- explosion cladding /
- internal friction