Junsheng LU Baorong WU Dept.of Alloy Steel
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Central Iron and Steel Research Institute Beijing
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100081
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ChinaG.J.Wang Dept.of Materials Science and Engineering
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University of Pennsylvania
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Philadelphia
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PA 19104
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USA
材料科学技术（英）
The mathematical expressions for magnetomechanical damping capacity are presented by applying Smith-Birchak's model in torsion pendulum and cantilever beam.The peak value ψ_p is found to be related to physical parameters and material constants in the form Kλ_s=αψ_pε_p.which can be used to estimate the magnetostrictive constant λ_s from the damping capacity-strain amplitude curve.A good agreement of experimental data and theoretical prediction was observed in HIDAMETS Cr15A13NiCu.
关键词:
magnetomechanical damping
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