阐明了镁合金的阻尼机理及应变振幅、频率、温度对镁合金阻尼性能的影响。综述了当前改善镁合金阻尼性能的主要方法,如添加合金元素、控制变形工艺、热处理、控制晶粒尺寸和取向、添加增强相。指出通过添加新的增强相和合金元素,引入位错阻尼之外新的阻尼产生机制,解决阻尼性能与力学性能的矛盾,将是未来高性能阻尼镁合金材料研究的重要方向,而且,产品外形结构设计与阻尼性能的关系也是值得关注的一个新研究方向。
The damping mechanism of magnesium alloys is introduced, and the influence of strain amplitudes, frequency and temperature on the damping property of magnesium alloys is discussed. The means that improve the damping mechanism of magnesium alloys including accession of alloy elements, controlling processing technics, thermal treatment, controlling grain size and grain orientation, and accession reinforce. It's pointed out adding new alloy ele- ments and reinforce phase, the introduction of a new damping mechanism to resolve the contradition of damping prop- erties and mechanical properties is an important direction of future research and development prospect of damping mag- nesium alloys. It's also pointed out that the relationship of product design and shape structural and damping properties is also a noteworthy new research direction.