Low Frequency Mechanical Spectroscopy of High Damping Mg-3wt.%Ni Alloy
The Dynamic Mechanical Analysis (DMA) was applied to investigate the low frequency mechanical spectroscopy response of as-cast high damping Mg-3wt.%Ni hypoeutectic alloys. There are two peaks appearing on the temperature dependent damping spectrum (-100 - 420 °C). The broad peak P1 is overlapped by some small peaks due to the thermally activated dislocation movement, while the P2 peak is a solute grain boundary relaxation peak.
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
D. Q. Wan and Y. J. Liu, "Low Frequency Mechanical Spectroscopy of High Damping Mg-3wt.%Ni Alloy", Advanced Materials Research, Vols. 146-147, pp. 1761-1764, 2011