Search for High Damping Metallic Glasses
In a hydrogen-doped metallic glass, there appear low-temperature and high-temperature internal friction peaks respectively associated with a point-defect relaxation and the crystallization. The high-temperature-side slope of low-temperature peak and also the low-temperature-side slope of high-temperature peak enhance the background internal friction near the room temperature. A hydrogen-doped Mg-base metallic glass was proposed as a high-damping material to be used near and somewhat above the room temperature. Stability of the high damping was also checked.
N. Igata and S. Takeuchi
Y. Hiki, M. Tanahashi, S. Takeuchi, "Search for High Damping Metallic Glasses", Key Engineering Materials, Vol. 319, pp. 151-156, 2006