Internal friction of Fe-Mn-Si-based shape memory alloys containing Nb and C and their application as a seismic damping material

被引：10
作者：
Sawaguchi, Takahiro
Kikuchi, Takehiko
Ogawa, Kazuyuki
Yin, Fuxing
Kajiwara, Setsuo
Kushibe, Atsumichi
Ogawa, Takatoshi
机构：
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
[2] Takenaka Corp, Chiba 2701395, Japan
来源：
HIGH DAMPING MATERIALS II | 2006年 / 319卷
关键词：
low cycle fatigue; x-ray diffraction (XRD); shape memory alloys (SMA); martensitic phase transformation; seismic damping;
D O I：
10.4028/www.scientific.net/KEM.319.53
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
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 similar to 80% above 0.4%. The reversible motion of the gamma/epsilon 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.
引用
收藏
页码：53 / 57
页数：5
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