Damping Capacity of Fe-Ga Alloys

被引：0
|
作者：
Ling, Fang Mei [1 ]
Jie, Zhu [1 ]
Heng, Li Ji [1 ]
Xu, Gao Xue [1 ]
机构：
[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
来源：
MACHINERY, MATERIALS SCIENCE AND ENGINEERING APPLICATIONS, PTS 1 AND 2 | 2011年 / 228-229卷
关键词：
Fe-Ga alloys; magnetoelastic; damping; magnetostriction; IRON-GALLIUM ALLOY; AL ALLOYS; INTERNAL-FRICTION; HIGH-TEMPERATURE; MAGNETOELASTICITY; ANELASTICITY;
D O I：
10.4028/www.scientific.net/AMR.226-228.937
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The damping capacity of Fe-Ga rods and sheets has been studied using a computer-controlled automatic inverted torsion pendulum instruments in a wide temperature range in a series of frequency. The frequency and temperature has different influence on the damping capacity of solidified Fe83Ga17 rods and (Fe83Ga17)(97.25)Cr2B0.75 sheets. The damping capacity of all specimens increased with frequencies. The solidified Fe-Ga rods showed an obvious low-temperature peak and a potential high-temperature peak with increasing temperature. However, the damping capacity of Fe-Ga sheets kept steady in a wide temperature range and then rapidly increased on further heating above 400 degrees C. Damping capacity of about 0.02 was obtained in both Fe-Ga rods and sheets at temperatures from room temperature to 500 degrees C. Thus, The Fe-Ga alloys are considered to be a class of promising high damping alloys.
引用
收藏
页码：937 / 941
页数：5
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