Phenomenological representation of mechanical spectroscopy of high damping MnCuNiFe alloy

Z. C. Jiang; S. B. Zhang; Q. C. Tian

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Phenomenological representation of mechanical spectroscopy of high damping MnCuNiFe alloy

机译：Phenomenological representation of mechanical spectroscopy of high damping MnCuNiFe alloy

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MnCuNiFe damping alloy was prepared to characterise the dynamic mechanical behaviour under varied frequency by employing dynamic mechanical analyzer, optical microscopy and X-ray diffraction. The relationship of characteristic temperatures is disentangled by antiferromagnetic transition (AFT), the strain glass transition and reverse martensitic transformation. It is reported that although only f.c.c. (γ) phase exists in the alloy under solution state, twins are induced by AFT. The aged alloy shows an elevated damping capacity while the maximum internal friction decreases from 0.1 to 10 Hz and then increases to 150 Hz, demonstrating the system resonant frequency of about 10 Hz under the vibration mode of double cantilever beam.

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《Materials Science and Technology: MST: A publication of the Institute of Metals》 |2020年第6期|743-749|共7页
作者
Z. C. Jiang; S. B. Zhang; Q. C. Tian;
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作者单位

State Key Laboratory of Advanced Special Steels, Shanghai University, Shanghai, People's Republic of China;

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原文格式 PDF
正文语种英语
中图分类工程材料学;
关键词
Internal friction; resonant frequency; twin damping; dislocation damping; reverse martensitic transformation; magnetic transition;

Phenomenological representation of mechanical spectroscopy of high damping MnCuNiFe alloy

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