Internal Friction of Fe-Mn-Si-Based Shape Memory Alloys Containing Nb and C and Their Application as a Seismic Damping Material |
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| Journal | Key Engineering Materials (Volume 319) |
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| Volume | High Damping Materials II |
| Edited by | N. Igata and S. Takeuchi |
| Pages | 53-58 |
| DOI | 10.4028/www.scientific.net/KEM.319.53 |
| Citation | Takahiro Sawaguchi et al., 2006, Key Engineering Materials, 319, 53 |
| Online since | September, 2006 |
| Authors | Takahiro Sawaguchi, Takehiko Kikuchi, Kazuyuki Ogawa, Fu Xing Yin, Setsuo Kajiwara, Atsumichi Kushibe, Takatoshi Ogawa |
| Keywords | Low Cycle Fatigue, Martensitic Phase Transformation, Seismic Damping, Shape Memory Alloy Actuator, X-Ray Diffraction (XRD) |
| Abstract | The damping behavior of an Fe-28Mn-6Si-5Cr-0.5NbC (mass%) shape memory alloy was measured by low cycle fatigue tests during tension-compression loadings. A remarkable damping capacity was observed above the strain amplitude of 0.1%, and the specific damping capacity (SDC) parameter reached saturation at ~ 80% above 0.4%. The reversible motion of the γ/ε interfaces is considered to dominate the cyclic deformation behavior, while the work hardening during tension-compression loading is negligible. These characteristics are favorable for seismic damping devices that protect civil structures from earthquakes. |
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