Low-frequency damping properties of near-stoichiometric Ni2MnGa shape memory alloys under isothermal conditions

SCRIPTA MATERIALIA

卷:59

Article

Chang, S. H.²  Wu, S. K.¹ 

[1] Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei 106, Taiwan

[2] Natl Ilan Univ, Dept Chem & Mat Engn, Ilan 260, Taiwan

关键词: Ni-Mn-Ga shape memory alloys;    Martensitic phase transformation;    Internal friction;    Dynamic mechanical analyzer;   

DOI  :  10.1016/j.scriptamat.2008.07.006

来源: Elsevier

【 摘 要 】

The low-frequency damping properties of near-stoichiometric Ni2MnGa shape memory alloys were investigated by dynamic mechanical analysis. Ni2MnGa alloys can possess good inherent internal friction under isothermal conditions over a wide temperature range from -100 to 100 degrees C without deterioration after thermal cycling. Ni2MnGa alloys with higher martensitic transformation temperatures are candidates for high damping applications since they can possess good inherent internal friction above room temperature. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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