论文部分内容阅读
制备了以混杂碳化硅颗粒和硅酸铝短纤维为增强物，以纯镁为基体的金属基复合材料研究了其阻尼性能与应变振幅、频率和温度的关系发现室温阻尼低于纯镁，但高温阻尼却优于纯镁认为复合材料室温阻尼是基体Mg中位错运动产生的，但高温阻尼主要归功于界面阻尼机制
The relationship between damping performance and strain amplitude, frequency and temperature was studied based on pure magnesium matrix composites reinforced with hybrid silicon carbide particles and aluminum silicate staple fibers. It was found that damping at room temperature was lower than pure magnesium but high temperature Damping is superior to that of pure magnesium. It is considered that the room temperature damping of composite is caused by the dislocation movement in the matrix Mg, but the high temperature damping is mainly attributed to the interface damping mechanism